Mods & Builds

Mods are the bolt-on parts that turn a stock Tool into a score-printing machine. Between Waves you drop into the Shop, spend your Coins, and stack Mods onto your Tool — and the right combination is what separates a 10-point pop from a screen-filling explosion.

"Use Mods to improve your Tool in many ways." — the in-game How to Play screen

Quick facts

What they are: purchasable parts that change your score math and how your Tool behaves.
Where you get them: the Shop, between Waves, bought with Coins.
How many: 139 shop Mods in build 1.0.1, plus 12 built-in mechanics pre-installed on Tools — 151 total. (Augments, Curses, Trials and other permanents are not Mods — see Augments.)
Six categories: ADD (red), MULTIPLY (blue), UTILITY, COIN, UNIQUE and RAINBOW — the labels shown on the How to Play screen. (Internally the COIN type is named CASH.)
The math: ( base 10 + all ADDs ) × your MULTIPLIER × Combo.

A Target bursting into points with combo popups in the neon cityscape Every Target is worth a base 10 points. Mods are what turn that 10 into the giant numbers you see exploding across the arena — note the 1x and 4x combo popups stacking on the hits.

This page covers how the Mod system works, how to buy and arrange Mods, how to build for synergy, and then a full Mod catalog organized by the game's own six categories. For the powers that change how your Tool fires, see Augments. For exactly how points are calculated, see Scoring. For deeper game-plans, see Tips & Strategy.

How Mods work

Every Mod carries a category label that tells you, at a glance, what it does. These are the six labels the game itself shows on the How to Play screen:

Category	Color	What it does
ADD	🔴 Red	Adds flat points to each Target (e.g. `+3`).
MULTIPLY	🔵 Blue	Increases your base 1x multiplier (e.g. `+1x`).
UTILITY	🟢 Green	Changes how your Tool behaves — reloads, mag size, freezing, exploding, etc.
COIN	🟡 Yellow	Earns or saves Coins, or improves the Shop. (Internally the COIN type is named `CASH`.)
UNIQUE	🟣 Purple	One-of-a-kind, single-level effects with powerful, build-defining twists.
RAINBOW	🌈 Multi	"Meta" Mods that act on neighbouring slots or bend the rules of the run itself.

The score formula

Your score for a Target is calculated in this order:

( base 10 + all ADDs ) × your MULTIPLIER × your Combo

That single line is the whole game. A red ADD Mod raises the base number; a blue MULTIPLY Mod magnifies everything you've added. Crucially, every point you add gets multiplied — so the bigger your pile of ADDs, the more each MULTIPLY (and every Combo point) is worth. This happens automatically: the game always applies all ADDs before all MULTIPLYs, so the result is the same no matter which slot each Mod sits in.

Tip: One blue +1x Mod on top of a fat pile of red ADDs is worth far more than the same +1x on a bare Tool. ADDs build the pile; MULTIPLYs blow it up — so you want both. A common plan is to grow a solid ADD base early, then layer multipliers on top.

Where do RAINBOW Mods come from?

No shop Mod ships in the RAINBOW category by default. The slot-manipulating Meta Mods (Twin Boost, Enhance, Level Override, Level Upper, Overcharge, Hypercharger) are the ones the game can hand out as Rainbow Mods. You receive a batch from the Rainbow Shuffle Trial — "Gain 3 Rainbow Mods. They are randomized each Wave." — and the Rainbow / Double Rainbow / Triple Rainbow Coins guarantee 1, 2 or 3 Meta Mods in your next Shop.

Why new Mods keep "appearing"

You won't see all 139 Mods in the Shop right away. The pool opens up gradually as you play — the game starts you on a default set and rolls more Mods (and permanents) into the available pool the longer you keep running, which is why fresh Mods seem to "show up" over your first several runs. So if a build guide name-drops a Mod you've never been offered, you probably just haven't unlocked enough of the pool yet — keep playing and it works its way in.

Buying & leveling Mods

You buy Mods with Coins in the Shop. Most Mods aren't one-and-done.

Leveled Mods (Tiers I, II, III) cost 10 Coins to buy and +5 Coins each time you level them. "Keep buying the same Mod to increase its level." Each level re-adds its base value — a level-1 Trusty Cog gives +3, level 3 gives +9. The Shop shows a Mod's current level as 2 of 5.
Level cap is 5 in the Shop. Leveled Mods can't climb past Lv 5 by re-buying alone.
UNIQUE and Meta/RAINBOW Mods are single-level. Their level-up increment is zero, so re-buying them does nothing — Big Ten is always +10, The Multiplier is always `+4x*. Buy them once. Most UNIQUEs cost a flat 15–20 Coins (a few — Whetstone, Icepick, Battery, Piggy Bank, Brick By Brick — are 10c); the Meta Mods are 20c, except Overcharge and Hypercharger which start at 10c and rise +10c. Dung Beetle is free (0c).

Going past level 5. Even leveled Mods can be pushed beyond the Shop's Lv 5 cap by run effects:

Sockets — Super / Mega / Ultra Sockets add +1 / +2 / +3 levels.
Hacks — Elite / Epic / Monolith Hacks add levels, and the buff Elite Hacks Red Feather (all ADD Mods +2 levels), Blue Button (all MULTIPLY +2), Gold Nugget (all COIN +2) and Green Marble (all UTILITY +2) raise whole categories at once.

The value keeps climbing by the same per-level increment. See Sockets and Hacks for the full cap-breaking detail.

Tip: A focused build of 3–4 high-level Mods usually beats a scattered build of 10 level-1 Mods. Depth over breadth.

Warped Mods

A Warped Mod is a familiar Mod with its category flipped — an ADD Mod becomes a MULTIPLY Mod, or a MULTIPLY becomes an ADD. Same Mod, opposite role. It's the game's way of letting you remix your favourites:

"Warped Mods: Mods that have their category swapped between Multiplier and Add. Remix your favourites!" — Update 0.9.8 changelog

How it works (verified in the game data). Each Mod template carries a warp flag — WeaponUpgradeDef.WarpingRules{DontWarp = 0, CanBeWarped = 1} — and only Mods marked CanBeWarped are eligible. When the game warps one, GenerateWarped() builds a swapped clone whose category is flipped between ADD (0) and MULTIPLY (1) — the same swap at the score-math layer (EARLY_ADD ↔ MULTIPLY). Warping also randomly re-scales the Mod's price by 0.5x to 2x (WARPED_PRICE_COEF_MIN = 0.5, WARPED_PRICE_COEF_MAX = 2, dump.cs:389765–66), so a warped favourite can show up cheaper or pricier than usual.

For almost every Mod, warping is a clean swap

The candidate pool is drawn from the ~28 ADD and ~24 MULTIPLY shop Mods, but the exact eligible subset is a per-Mod CanBeWarped flag that isn't surfaced in the item data. For the vast majority, warping just changes the colour/category with zero change to the value — a +5 ADD simply becomes a +5x MULTIPLY. The one decoded exception is Full Throttle (killRateMult, SMG), the only Mod whose warped values differ from its base (SCORE:MULT b=0 i=1 wB=0/wI=-1); everything else warps with no value delta.

How you get Warped Mods

There are two roads to a warped Shop:

The Warped Trial — "ADD and MULTIPLY Mods have a 50% chance to be Warped. All Mod prices are also warped!" Pick this Trial and warping is the whole point of the run.
Warp-guarantee Round Reward Coins (added in Update 0.9.9) — three reward Coins that drop warped Mods straight into your next Shop without committing to a Trial:

Icon	Reward	What it does
	Weird One	"Next Shop contains 1 Warped mod."
	Dubious Duo	"Next Shop contains 2 Warped mods."
	Twisted Trio	"Next Shop contains 3 Warped mods."

Why warp on purpose? Flipping a category lets you bend a Mod to whatever your build is short on. Sitting on a fat pile of ADDs but starving for multipliers? A warped ADD-turned-MULTIPLY scales everything you've already stacked. The price re-roll is the gamble — sometimes you get your remix at a discount, sometimes you pay extra for it.

Mod slots

Your Mods sit in a row of slots, and every Tool starts with some of those slots locked. You don't just live with the slots you're given — you unlock more in the Shop, and run rewards add even more on top.

How slots work (verified in the game data). Each Tool's template carries three slot fields — m_lockedSlots, m_slotCostBase and m_slotCostIncrement (compiled code, dump.cs lines 405459–405463). Tools ship with locked slots that you pay Coins to unlock, and each unlock costs more than the last:

Every Tool starts with 2 locked slots (m_lockedSlots = 2).
Unlocking them follows base 30 / increment +20 (m_slotCostBase = 30, m_slotCostIncrement = 20): the first locked slot costs 30 Coins, the second costs 50 Coins. (Player-confirmed in-game, matching the data exactly.)

Permanents add more slots on top of the ones you unlock in the Shop:

Stack Overflow ("Grants another mod slot.") — an Elite Hack, +1 slot.
Monolith Shard ("Adds 2 extra mod slots.") — the lone Monolith permanent, +2 slots.
A handful of Trials also bundle an extra slot (e.g. Rainbow Shuffle grants "1 extra unlockable Mod slot").

Trials can change the price. A Trial's rule set can modify slot pricing through RuleSetDefinition.m_slotCostIncrementMod — so under some Trials each successive slot costs more (or less) than the standard +20 step.

So slots are a real economy: spend Coins to unlock your starting locked slots, then snowball them further with Stack Overflow and Monolith Shard. See Hacks and The Monolith.

Refreshing & freezing the Shop

Don't like what the Shop is offering? You can refresh it for a new roll of Mods — and freeze the ones you do like so they survive the next refresh.

Refresh cost

Refreshing has a rising price that resets every Shop (verified in the game data, ScoreManager constants UPGRADE_REFRESH_BASE = 1 and UPGRADE_REFRESH_INCREMENT = 1, dump.cs:390799 / 390802):

The first refresh in a Shop costs 1, the second costs 2, the third costs 3, and so on.
The counter resets to 1 when you reach the next Shop, so refreshing is cheap if you do it sparingly.

Two Hacks bend the refresh price

The Deep Search Hack makes "Refreshing the Shop starts at 0 Coins" — your first reroll each Shop is free, and the ramp climbs from there. (Other run effects can discount refreshes too.)

What you spend to refresh

Normally a refresh is paid in Coins. The exception is the Token Trouble Trial, which replaces Coins with a dedicated consumable:

Refresh Token — "Spend to refresh the shop." A distinct currency used only for refreshing under Token Trouble.

You stock up on Refresh Tokens from two sources:

the Token Glitch — a fleeing bonus Target that drops a Refresh Token when you tag it; and
the Refresh Rations / Refresh Resupply / Refresh Air Drop Round Reward Coins, which add 1 / 2 / 3 Refresh Tokens respectively.

Freezing items

You can freeze a Shop item to carry it over to your next visit instead of losing it on a refresh or wave change (handled by StoreListing.IsFrozen / SetItemFrozen in the game data). Freeze the Mod you're saving up for so a refresh can't snatch it away — unless the Heatwave Curse is active, which blocks freezing entirely.

Arranging Mods

You can drag Mods to rearrange them — but here's the thing players often get told wrong: for ordinary ADD and MULTIPLY Mods, position does not change your score. The game always works out (base + all your ADDs) × all your MULTIPLYs, no matter which slot each Mod is in, so you never need to manually put reds before blues.

Where arrangement does matter is the handful of Mods that act on a neighbouring slot or on empty slots:

Slot-neighbour Mods — the Meta Mods Level Override, Overcharge, Enhance, Twin Boost, Level Upper and Hypercharger — copy, boost, or consume the Mod in the slot to their left or right (or "the next slot"). Place these right next to the Mod you want them to affect.
Empty-slot Mods — Lone Gunman adds +2 per empty mod slot (more at higher levels), so where you leave gaps matters.

"Drag Mods to arrange them for maximum effect." — How to Play. (That "maximum effect" is about the Mods above — not about ordering ADDs ahead of MULTIPLYs, which makes no difference.)

Build-crafting: making Mods synergize

A "build" is just a group of Mods that feed each other. The fun is finding combos where 1 + 1 = 5. Here are the engines players build around. Note that the Augment is the unlock — the Freeze/Lightning/Heat/Explosive/Critical/Combo Mods only do anything once you have the matching Augment equipped.

The ADD→MULTIPLY core. Always your foundation. Pile on red ADDs, then a couple of blue MULTIPLYs to scale them. Mods like Checks ("+1 per level of all owned mods") and Balances ("+1x per every 2 levels of all owned mods") even reward you for owning lots of leveled Mods, so a deep build pays itself off.
Combo engines. Your Combo multiplies your score on top of everything. Mods that raise your max Combo or convert hits into Combo faster (To The Moon, Combo Skipper, Reckless Climber) keep that multiplier sky-high. Combo Saver gives Combo Saves so a single miss doesn't wipe the streak. Pairs with the Combo Augment (built into the Pistol).
Critical builds. Stack Critical Hit chance and the payoff of each crit (Calipers, Whetstone, Coup de Grace) plus the Critical Hit Augment. Torsion Spring instantly reloads on a crit; Sharpened Pickaxe turns crits into Coins.
Explosive builds. Widen the blast and reward multi-target hits (TNT, Mortar, Collateral Damage) and chain it with Dominos ("Exploded targets also explode."), powered by the Detonator Augment.
Freeze builds. Freeze a crowd, then cash in (Chiller, Ice Sculpture, Igloo, Frozen Treasure) with the Arctic Pod Augment.
Lightning builds. Chain arcs across the arena (Chain Lightning, Harness Power, Battery) for score and Coins (Electrolysis), powered by the Arc Module Augment.
Heat builds. Heat ramps as you fire — feed it and keep it hot (Hot Streak, Beanie, Time Out, Crucible) with the Heat Augment (built into the SMG).
Reload / mag engines. Many Mods trigger when you reload or scale with mag size (Bellows / Chili Pepper, Slingshot, Replicator).
Economy snowballs. Earn more Coins each Wave (Gold Digger, Crucible, Piggy Bank) so you can out-buy the rising difficulty.

Tip: Don't try to do everything. Pick one engine that matches your Augment, build around it, and let the snowball roll. Read more in Tips & Strategy.

Heads-up — these are permanents, not shop Mods. Some run rewards look like Heat/Lightning/Freeze Mods but are actually permanents you can't buy: Firestarter ("Start the wave with 5 Heat."), Fork Lightning ("Lightning will arc to two targets instead of one.") and the Arctic Pod Augment itself ("Hitting a target freezes nearby targets."). They support the builds above but live on the Monolith path, not the Shop.

The full catalog

Every shop Mod in build 1.0.1, organized by the game's six in-game categories — ADD, MULTIPLY, UTILITY, COIN, UNIQUE and RAINBOW/Meta. Each Mod appears exactly once, in the section matching its internal type. All per-level numbers are pulled directly from the game data and are exact. Icons are the real in-game Mod icons.

Reading the tables. Leveled Mods (Tiers I/II/III) show Lv 1–5 columns — each level re-adds the increment, and Sockets/Hacks/buffs can carry it past Lv 5. Single-level Mods (UNIQUE, RAINBOW/Meta and Dung Beetle) show a single Value because they do not scale by re-buying. A — value means the effect is binary (on/off) or scales by a live in-game condition rather than a fixed per-level number. Where a Mod requires a specific Augment to do anything, that gate is noted in its effect.

ADD (28)

Red Mods that add flat points to each Target. Dung Beetle is internally an ADD Mod (the lone SINGLE tier) and lives here.

Core & timing

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Trusty Cog	Adds points to targets.	+3	+6	+9	+12	+15	10c (+5)
Full Contact	Adds score for direct hits.	+3	+6	+9	+12	+15	10c (+5)
Lone Gunman	Adds to targets for each mod slot left empty.	+2	+4	+6	+8	+10	10c (+5)
Final Sprint	Adds to targets hit late in a Wave.	+8	+16	+24	+32	+40	10c (+5)
Crescendo	Each round in the mag scores more than the previous one.	+1	+2	+3	+4	+5	10c (+5)
Burnout	First round adds a bonus; every following round scores a bit less.	+2	+4	+6	+8	+10	10c (+5)
Exhaust	First round adds +8; every following round scores less.	+8	+16	+24	+32	+40	10c (+5)
Nice Odds	Odd-numbered rounds add to targets.	+6	+12	+18	+24	+30	10c (+5)
Dung Beetle	Adds a growing amount to targets; "Likes to be boosted." The only SINGLE-tier Mod — and it's free.	—	—	—	—	—	0c

Hit-condition & miss-streak

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
	Receipts	Adds to targets per shot missed. Resets on a hit or reload.	+2	+4	+6	+8	+10	10c (+5)
	Focus Fire	Adds for each additional hit on a target.	+2	+4	+6	+8	+10	10c (+5)
	Vendetta Strike	Adds to the first targets hit after a miss.	+10	+20	+30	+40	+50	10c (+5)
	Flash Bang	Adds to targets destroyed within 1s of pulling the trigger.	+4	+8	+12	+16	+20	10c (+5)
	Objection!	If your last reload was interrupted, adds to targets.	+4	+8	+12	+16	+20	10c (+5)
—	Overkill	Every extra hit on a target is worth more than the last.	+1	+2	+3	+4	+5	10c (+5)

Random / streak / perfect

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Lucky Shot	A random round in each mag adds to targets.	+15	+30	+45	+60	+75	10c (+5)
Contagion	Hits with random rounds in the mag add a big flat bonus.	+30	+30	+30	+30	+30	10c (+5)
3 in a Row	Adds to the 3rd target when you hit 3 without missing.	+30	+60	+90	+120	+150	10c (+5)
Marksman	Adds if you hit with every round in a mag.	+20	+40	+60	+80	+100	10c (+5)
Bellows	Targets worth more every time you fully reload an empty mag. Resets each Wave.	+1	+2	+3	+4	+5	10c (+5)

Shotgun / pellet & ricochet

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Flock Shot	Adds for each additional target hit with a single shot.	+5	+10	+15	+20	+25	10c (+5)
Rations	Adds to targets hit by half or less of the pellets fired.	+5	+10	+15	+20	+25	10c (+5)
Blindfold	Adds to targets per pellet that missed all targets.	+2	+4	+6	+8	+10	10c (+5)
Mirror	Ricochets add to targets.	+7	+14	+21	+28	+35	10c (+5)

Augment-gated (Explosive / Freeze / Lightning)

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost	Augment
Collateral Damage	Targets score more when hit by explosions.	+6	+12	+18	+24	+30	10c (+5)	Detonator
Mortar	Adds for each extra target hit with an explosion.	+3	+6	+9	+12	+15	10c (+5)	Detonator
Ice Sculpture	Adds to direct hits for each other target currently frozen.	+1	+2	+3	+4	+5	10c (+5)	Arctic Pod
Harness Power	Adds score for each lightning jump.	+3	+6	+9	+12	+15	10c (+5)	Arc Module

MULTIPLY (24)

Blue Mods that raise your base 1x multiplier.

Core & combo / timing

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Wrench	Adds to targets.	+1x	+2x	+3x	+4x	+5x	10c (+5)
Summit	Adds to targets when you're at Max Combo.	+2x	+4x	+6x	+8x	+10x	10c (+5)
Holster	Adds to targets hit within 1.5s of appearing.	+3x	+6x	+9x	+12x	+15x	10c (+5)
Rampage	Adds to a target hit within 0.5s of another.	+3x	+6x	+9x	+12x	+15x	10c (+5)
Full Throttle	Adds for each target destroyed in the previous second.	+1x	+2x	+3x	+4x	+5x	10c (+5)
Flywheel	Adds per target destroyed without releasing the trigger or reloading.	+1x	+2x	+3x	+4x	+5x	10c (+5)
Costly Mistakes	Adds to every round; misses cost Coins.	+3x	+6x	+9x	+12x	+15x	10c (+5)

Mag position & reload

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Top Deck	First round of the mag adds.	+3x	+6x	+9x	+12x	+15x	10c (+5)
Last Word	Final round of the mag adds.	+4x	+8x	+12x	+16x	+20x	10c (+5)
Candle	Adds to targets; reloading reduces it. Resets each Wave.	+5x	+10x	+15x	+20x	+25x	10c (+5)
Baked Beans	Adds to the first shot after fully loading an empty mag.	+5x	+10x	+15x	+20x	+25x	10c (+5)
Slingshot	After reloading, adds to the next shot per round reloaded.	+2x	+4x	+6x	+8x	+10x	10c (+5)

Burst (3-round burst Tool)

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
	Air Horn	Adds to the first 3 targets hit after pressing the trigger.	+3x	+6x	+9x	+12x	+15x	10c (+5)
—	Max Burst	Hitting with every round of a burst adds.	+2x	+4x	+6x	+8x	+10x	10c (+5)
—	Opening Burst	Multiplies the score of the first round of a burst.	+1x	+2x	+3x	+4x	+5x	10c (+5)

Shotgun / pellet & pierce

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Bolas	Adds when 2+ targets are hit with pellets in one shot.	+4x	+8x	+12x	+16x	+20x	10c (+5)
Funnel	Adds to targets hit by every pellet in the shot.	+4x	+8x	+12x	+16x	+20x	10c (+5)
Sprinkler	Adds to targets hit by a single pellet.	+5x	+10x	+15x	+20x	+25x	10c (+5)
Arrowhead	Rounds pierce and add when hitting multiple targets.	+5x	+10x	+15x	+20x	+25x	10c (+5)

Counters & grenade

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
	Trophy	Adds for every 8 targets hit directly. Resets each Wave.	+1x	+2x	+3x	+4x	+5x	10c (+5)
	Trophy Case	Adds for every 12 targets hit directly. Resets each Wave.	+1x	+2x	+3x	+4x	+5x	10c (+5)
—	Flight Time	Grenades score more per half-second of age.	+2x	+4x	+6x	+8x	+10x	10c (+5)

Augment-gated (Explosive / Freeze)

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost	Augment
	Grand Finale	Adds to targets hit by explosions; grows over time.	+1x	+2x	+3x	+4x	+5x	10c (+5)	Detonator
	Chiller	Adds to frozen targets.	+3x	+6x	+9x	+12x	+15x	10c (+5)	Arctic Pod

UTILITY (31)

Green Mods that change how your Tool behaves rather than the score number directly.

Reload, mag & fire rate

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Big Stack	Add round(s) to your mag.	+1	+2	+3	+4	+5	10c (+5)
High Tower	Add round(s) to your mag.	+3	+6	+9	+12	+15	10c (+5)
Short Stack	Remove round(s) from your mag. Cannot remove the final one.	−1	−2	−3	−4	−5	10c (+5)
Machine Oil	Shorter reload time.	−10%	−20%	−30%	−40%	−50%	10c (+5)

Shotgun spread & pellets

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Pellet Plus	Adds pellets to each shot.	+1	+2	+3	+4	+5	10c (+5)
Clamp	Shot blast is narrower.	−15%	−30%	−45%	−60%	−75%	10c (+5)
Spray Paint	Shot blast is wider and adds a pellet.	+30%	+60%	+90%	+120%	+150%	10c (+5)

Targets, Glitches & size

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
Balloon	Targets are bigger.	+20%	+30%	+40%	+50%	+60%	10c (+5)
Splitter	Chance for a hit target to spawn a smaller target.	+20%	+40%	+60%	+80%	+100%	10c (+5)
Whack-a-Glitch	Hitting a Glitch directly has a chance to spawn another.	+20%	+40%	+60%	+80%	+100%	10c (+5)
Glitch Glut	More Glitches spawn each Wave.	+1	+2	+3	+4	+5	10c (+5)

Grenade Tool

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost
—	Bouncy	Increase number of bounces.	+2	+4	+6	+8	+10	10c (+5)
—	Velocity	Grenades travel faster.	+25%	+50%	+75%	+100%	+125%	10c (+5)
—	Magnetic	Grenades find enemies attractive.	+10	+20	+30	+40	+50	10c (+5)
—	Proximity Fuse	Targets explode within range.	+0.5m	+1m	+1.5m	+2m	+2.5m	10c (+5)
—	Bigger Grenades	Increase the size of your grenades.	+0.5m	+1m	+1.5m	+2m	+2.5m	10c (+5)

Augment-gated (Combo / Critical / Explosive / Freeze / Heat / Lightning)

Icon	Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost	Augment
	To The Moon	Increases your max Combo.	+4x	+8x	+12x	+16x	+20x	10c (+5)	Combo
	Combo Buoy	Increases your minimum Combo. Cannot exceed max.	+2x	+4x	+6x	+8x	+10x	10c (+5)	Combo
	Reckless Climber	Each Combo increase is bigger; reloading resets Combo.	+3x	+6x	+9x	+12x	+15x	10c (+5)	Combo
	Combo Saver	Gives Combo Saves per Wave.	+1	+2	+3	+4	+5	10c (+5)	Combo
	Curtain Call	Doubles max Combo after a time threshold in a Wave.	×2	×2	×2	×2	×2	10c (+5)	Combo
	Calipers	Increases chance of a Critical Hit.	+20%	+40%	+60%	+80%	+100%	10c (+5)	Critical
	Last Stand	Adds Critical Hit chance after a time threshold in a Wave.	+100%	+100%	+100%	+100%	+100%	10c (+5)	Critical
	TNT	Explosion radius increased.	+0.5m	+1m	+1.5m	+2m	+2.5m	10c (+5)	Detonator
	Spark Plug	First round in mag gives a bigger explosion.	+0.5m	+1m	+1.5m	+2m	+2.5m	10c (+5)	Detonator
—	Explosive Rounds	Explosion range increased (base 0.5m).	+0.15m	+0.3m	+0.45m	+0.6m	+0.75m	10c (+5)	Detonator
	Igloo	Ice-splosion radius increased.	+0.25m	+0.5m	+0.75m	+1m	+1.25m	10c (+5)	Arctic Pod
	Beanie	Heat fades slower.	2× slower	3×	4×	5×	6×	10c (+5)	Heat
	Anchor	Rounds fire slower; slower fire raises Heat generation.	+50%	+100%	+150%	+200%	+250%	10c (+5)	Heat
	Propeller	Rounds fire faster.	−30%	−60%	−90%	−120%	−150%	10c (+5)	Heat
	Chain Lightning	Lightning can jump more times.	+1	+2	+3	+4	+5	10c (+5)	Arc Module

COIN (12)

Yellow Mods (internal type CASH) that earn or save Coins.

Mod	Effect	Lv 1	Lv 2	Lv 3	Lv 4	Lv 5	Cost	Augment
Gold Digger	Chance to get a Coin when destroying a target.	+15%	+30%	+45%	+60%	+75%	10c (+5)	—
Reload Tax	Coins per direct hit, but reloading costs Coins.	+1 / −5	+2 / −10	+3 / −15	+4 / −20	+5 / −25	10c (+5)	—
Wise Investment	Each round in mag has a higher Coin chance than the last.	+2%	+4%	+6%	+8%	+10%	10c (+5)	—
Golden Bullet	A random round in mag gives a Coin on a kill.	+1	+2	+3	+4	+5	10c (+5)	—
Lucky Charm	Hits with random rounds in mag give a Coin.	1	2	3	4	5	10c (+5)	—
Zero Waste	Chance to gain a Coin when reloading.	+20%	+40%	+60%	+80%	+100%	10c (+5)	—
Sharpened Pickaxe	Critical Hits give Coins.	+1	+2	+3	+4	+5	10c (+5)	Critical
Chisel	Each additional hit on a target gives a chance of a Coin.	+4%	+8%	+12%	+16%	+20%	10c (+5)	Overkill
Frozen Treasure	Chance to gain a Coin when a frozen target is hit.	+30%	+60%	+90%	+120%	+150%	10c (+5)	Arctic Pod
Electrolysis	Chance of a Coin when lightning arcs.	+20%	+40%	+60%	+80%	+100%	10c (+5)	Arc Module
Crucible	Per Heat level, chance to get a Coin on a kill.	+1%	+2%	+3%	+4%	+5%	10c (+5)	—
Alchemy Flask	Gain a Coin when you hit a target with enough pellets.	+1	+1	+1	+1	+1	10c (+5)	—

UNIQUE (34)

Purple, one-of-a-kind Mods — single-level, so re-buying does nothing. A Family column keeps the mechanic findable.

Score & scaling

Mod	Family	Effect	Value	Cost	Augment
Big Ten	Score	Adds a flat amount to targets.	+10	15c	—
The Multiplier	Score	Adds to targets.	+4x	15c	—
Collector	Score	Adds for every Unique mod (including this one).	+3x each	20c	—
Checks	Score	Adds per level of all owned mods.	+1 / level	20c	—
Balances	Score	Adds 1x per every 2 levels of all owned mods.	+1x / 2 lvls	20c	—
Moneybags	Score	Adds to targets per 10 Coins you have.	+0.1 / 10c	20c	—
Brick By Brick	Score (grower)	Adds to targets; increases by +2 every Wave.	+2, +2/Wave	10c	—
Ice Cream	Score (shrinker)	Adds to each shot; decreases every Wave.	+15, −15/Wave	15c	—

Overkill

Icon	Mod	Family	Effect	Value	Cost	Augment
	Boxing Gloves	Overkill	Adds when a target is destroyed with 3+ hits.	+5x	20c	Overkill
	Speed Bag	Overkill	Load a shell when a target is destroyed with 3+ hits.	on/off	20c	Overkill

Combo

Mod	Family	Effect	Value	Cost	Augment
Combo Skipper	Combo	Each hit adds 2x to Combo instead of 1x.	on/off	20c	Combo
Magic Beans	Combo	Increases max Combo; grows by +1x every Wave.	+1x, +1/Wave	20c	Combo
Ridiculous Combo	Combo	Increases your max Combo; grows every Wave (a Trial/Combo-augment variant of Magic Beans).	grows/Wave	20c	Combo

Critical Hit

Mod	Family	Effect	Value	Cost	Augment
Whetstone	Critical	Increases Critical Hit chance; +10% every Wave.	+10%/Wave	10c	Critical
Coup de Grace	Critical	Last round in mag has +100% Critical Hit chance.	guaranteed crit	20c	Critical
Torsion Spring	Critical	Instantly reload when you get a Critical Hit.	on/off	20c	Critical

Explosive

Icon	Mod	Family	Effect	Value	Cost	Augment
	Dominos	Explosive	Exploded targets also explode.	on/off	20c	Detonator
	Glitchy C4	Explosive	Hitting a Glitch explodes the whole arena.	arena-wide blast	20c	Detonator

Freeze & Lightning

Mod	Family	Effect	Value	Cost	Augment
Icepick	Freeze	Loads a round when a frozen target is hit directly.	on/off	10c	Arctic Pod
Voltage Amp	Lightning	Lightning can jump any distance.	unlimited range	20c	Arc Module
Battery	Lightning (grower)	Lightning-hit targets get a bonus; grows each Wave.	+2, +2/Wave	10c	Arc Module

Heat

Mod	Family	Effect	Value	Cost	Augment
Hot Streak	Heat	Direct hits add 3 Heat; misses remove 2 Heat.	+3 / −2	20c	—
Preheat	Heat	Reloading an empty mag adds Heat.	+3 Heat	20c	—
Time Out	Heat	Heat does not decrease while reloading.	on/off	20c	Heat
Blow Torch	Heat	Heat gained is increased by 50%.	+50%	20c	Heat

Reload, mag & pellet

Mod	Family	Effect	Value	Cost	Augment
Double Barrel	Reload/Mag	Fire 2 rounds at a time.	on/off	20c	—
Momentum	Reload/Mag	Releasing the trigger loads 3 rounds if 3 targets were hit.	on/off	20c	—
Replicator	Reload/Mag	Add one bullet to your mag after each full reload.	+1/reload	20c	—
Zip Tie	Reload/Mag	Reload 2 shells at a time.	on/off	20c	—
One Hit Wonder	Reload/Mag	Only 1 round per mag, +30% slower reload.	1-round mag	20c	—
Abacus	Reload/Mag	Each shell shoots as many pellets as your mag size.	on/off	20c	—
Chili Pepper	Reload (grower)	Targets worth +1 more every full reload of an empty mag. Resets each Wave.	+1/reload	20c	—
Drip Feeder	Pellet (grower)	Shells gain an extra pellet every 5 seconds. Resets each Wave.	+1 pellet / 5s	20c	—

Economy

Icon	Mod	Family	Effect	Value	Cost	Augment
	Piggy Bank	Economy (grower)	After each Wave, increases its own sell value.	growing value	10c	—

RAINBOW / Meta (10)

Multi-colour "Meta" Mods — single-level. They act on a neighbouring or next slot, so place them carefully (see Arranging Mods). These are the Mods the game hands out as RAINBOW Mods (e.g. via the Rainbow Shuffle Trial). The 10 internal entries map to 6 distinct Mods — Enhance, Level Override, Overcharge and Level Upper each have a left and a right variant (paired icons below).

Mod	Effect	Cost
Twin Boost	Adds levels to both the left and right slots.	20c
Enhance	Boosts the mod to the left/right by some levels.	20c
Level Override	Copies one neighbour's mod level onto the other side.	20c
Level Upper	Pays 10 Coins to add a level to a neighbour slot each Wave / on Shop exit.	20c
Overcharge	Adds levels to a neighbour, then destroys it after the Wave.	10c (+10)
Hypercharger	Adds levels to the next slot, then destroys it for the rest of the Trial.	10c (+10)

Built-in mechanics (pre-installed on Tools)

These 12 entries are baked into your Tool or unlocked by an Augment — you don't buy them in the Shop, and only one has an in-game display name (the rest carry no localized name). Most are gated by an Augment (the built-in set uses AUG_COMBO, AUG_EXPLODING, AUG_HEAT and AUG_LIGHTNING), so they only do anything once that Augment is equipped. Internally they drive the Pistol's Combo, the SMG's Heat, Overkill, multi-target, and the grenade/cluster explosions. (The shop UNIQUE Ridiculous Combo in the catalog above has a separate built-in counterpart here.)

Internal id	Role	Augment gate
`comboPoints`	Pistol's built-in Combo scoring (+1x per Combo).	—
`heatPoints`	SMG's built-in Heat scoring (+1x per Heat).	Heat
`overkillMult`	Built-in Overkill multiplier (+1x).	—
`multiTargetMult`	Built-in multi-target multiplier (+1x).	—
`builtInExplodingRadiusMag`	Per-mag explosion radius growth.	Detonator
`grenadeExplodingBullets`	Grenade explosion sizing.	—
`clusterGrenadeExplodingBullets`	Cluster-grenade explosion sizing.	—
`builtInLightningScoreNoArc`	Lightning score when no arc occurs (+5x).	Arc Module
`builtIntLightningExtraJumpLastBullet`	Extra lightning jump on the last round.	Arc Module
`pelletThiefBonus`	Built-in pellet bonus (+3 pellets).	—
`trialOneBulletMag`	The one-round-mag Trial mechanic.	—
`comboMaxGrowerTrial`	Ridiculous Combo — the only one with a display name.	Combo

Quick build cheat-sheet

Always: a healthy stack of red ADD Mods and a couple of blue MULTIPLY Mods — you need both for the math to pop.
Then: pick the engine matching your Augment — Explosive, Freeze, Lightning, Heat, Critical or Combo — and pile Mods into it.
Keep Combo maxed: Combo multiplies everything. Grab Combo Saver so one miss doesn't wipe your streak.
Level up, don't spread out: re-buy your best leveled Mods to climb their level (UNIQUE/Meta Mods don't level — buy them once). A focused 3–4 Mod build usually beats ten level-1 picks.
Unlock your slots: spend Coins to open your 2 locked slots (30c then 50c), then snowball them with Stack Overflow and Monolith Shard.
Fuel the snowball: a little Coin economy early lets you out-buy the rising score targets later.
Refresh sparingly: the first reroll each Shop costs 1, then 2, 3… and resets next Shop — so don't burn Coins chasing a perfect roll. Freeze the Mod you want so a refresh can't take it.
Warp on purpose: a Warped Mod flips ADD ↔ MULTIPLY, so use the Warp-guarantee Coins (or the Warped Trial) to fill whatever your build is short on.
Placement only matters for Meta Mods: put slot-neighbour Mods (Level Override, Overcharge, Enhance, Hypercharger) next to what they affect, and mind where Lone Gunman leaves empty slots. Plain ADD/MULTIPLY order is irrelevant.

Tip: Don't try to do everything. Pick one engine that matches your Augment, build it deep, and let the snowball roll.

Mods & Builds ​

How Mods work ​

The score formula ​

Where do RAINBOW Mods come from? ​

Why new Mods keep "appearing" ​

Buying & leveling Mods ​

Warped Mods ​

How you get Warped Mods ​

Mod slots ​

Refreshing & freezing the Shop ​

Refresh cost ​

What you spend to refresh ​

Freezing items ​

Arranging Mods ​

Build-crafting: making Mods synergize ​

The full catalog ​

ADD (28) ​

MULTIPLY (24) ​

UTILITY (31) ​

COIN (12) ​

UNIQUE (34) ​

RAINBOW / Meta (10) ​

Built-in mechanics (pre-installed on Tools) ​

Quick build cheat-sheet ​

See also ​