Two kinds of “mods”
When players search for Crab Champions mods they usually mean one of two different things, and they install completely differently:
- In-game weapon mods — a native system. Your gun has a heat gauge; firing builds heat and overheating forces a cooldown. Weapon mods change what the shot does (ricochet, homing, black holes) and shift the heat math. These drop in-run like any other upgrade.
- External mods — third-party Lua mods from Nexus Mods, loaded through the UE4SS framework. These add HUDs, emotes, and run customisation that the base game does not have.
The rest of this page covers both, because both are real and both show up in the same search.
In-game weapon mods (the heat system)
Every weapon builds heat as it fires; push it too far and you cannot fire again until it cools. Mods both add effects and tweak that heat curve — Cooling Shot cools on hit, Heatsink raises cool speed, Extended Mag raises max heat. The mods are tiered, and the deeper tiers are where the wild combos live:
- Common: Cooling Shot, Light Shot, Bouncing Orb, Heatsink, Extended Mag, Wind Up, High Caliber, Glue Shot, Charm Shot, Ricochet Shot, Snake Shot, Fast Shot
- Rare: Stun Shot, Weak Shot, FMJ, Cluster Shot, Chaotic Shot, Big Shot, Explosive Core, Ghost Shot, Poison Dagger, Iron Shot, Combo Counter, Precision Laser, Earthquake Shot, Close Shot, Distant Shot
- Epic: Damage Shot, Crit Shot, Power Shot, Mega Crit Shot, Giga Crit Shot, Supercharger, Stacker, Heatseeker, Quad Shot, Looper, Random Shot, Piercing Shot, Saw Blade, Elemental Shot, Crystal Blast
- Legendary: Double Barrel, Splash Shot, Black Hole, Blade Cluster, Homing Shot, Ice Shot, Fire Shot, Lightning Shot, Acid Shot, Clone Shot, Fireball
The strongest in-game builds stack mods that share a trigger. An Orb Launcher with Black Hole (pulls enemies in) plus Homing Shot (pulls projectiles to them) plus Crystal Blast turns every shot into a screen-clearing chain — the same synergy logic used in the weapon builds guide, just applied to mods instead of perks.
External mods (Nexus Mods + UE4SS)
The external scene lives on Nexus Mods and runs on UE4SS, a UE4 scripting framework. Real, actively-updated examples:
- Damage Tracker — live DPS, current-island damage and peak DPS on the player strip; works in multiplayer.
- Ultimate Mod Menu — custom loadouts, adjustable start settings and crystal values; needs BPLoader.
- Better Descriptions — items show more detailed information.
- Custom Emotes / Player Health HUD — quality-of-life cosmetic and UI tweaks.
Installing an external mod
- Install UE4SS v3.0.1 or newer.
- Extract the mod into
Crab Champions\CrabChampions\Binaries\Win64\Mods. - The final structure must be
Win64\Mods\<ModName>\enabled.txtplusWin64\Mods\<ModName>\scripts\main.lua. - Back up your save first — external mods depend on a framework that can break when the game patches.
Which should you use?
If you want stronger guns, the in-game weapon mod tiers are the answer and need no framework. If you want HUD or run tools, the Nexus/UE4SS mods are the only option. Either way, the best weapons tier list tells you which gun is worth modding first.
Related guides
- Weapon Builds — synergy logic that works for mods too.
- Best Weapons Tier List — which gun to mod first.
- Build Guide — combine weapon, mods and upgrades into one trigger.
- Upgrade Types Guide — the perk side of the same system.