CoopBot

Enter the Gungeon – Co-op Bot

A BepInEx mod that adds an AI-controlled second player to Enter the Gungeon. The bot follows you, fights, dodges, and does what you order with hotkeys. It uses the game's own co-op systems (second player, ghost/revive, co-op camera and UI).

Features

• Summon / dismiss a bot in any run; choose which character it plays (Cultist, Pilot, Convict, Marine, Hunter, Robot, Bullet, Paradox, Gunslinger,...).
• Combat: targets and shoots enemies with lead, slight human-like aim error, reloads smartly, handles charge weapons, drops empty weapons, can use blanks and active items.
• Dodging: predicts incoming projectiles and weaves or rolls (with varied reaction times); avoids pits, harmful goop/fire and telegraphed danger zones (e.g. sky rockets).
• Cover: flips tables and uses cover, with a configurable preference.
• Orders (H): open chests, interact with objects, pick up guns, smash breakables, regroup, or kill the enemy under the cursor.
• Co-op rules: works with doors and elevators, becomes a ghost when killed (blocks bullets until revived), camera follows the bot if you are down.
• Shared loadout: the bot's items/guns are stored when dismissed and restored when summoned again.
• If you die outside a boss room, the run ends as in single player.
• Pause-menu "Coop Bot Menu" to rebind keys and set cover preference.

Requirements

• Enter the Gungeon (Steam, Windows, 64-bit)
• BepInEx 5.x (x86/x64 matching the game) installed in the game folder
• The Mod the Gungeon API / loader for BepInEx
• To build from source:.NET SDK (any recent version; targets net35 via reference assemblies)

Install

• Install BepInEx and Mod the Gungeon into the game folder and run the game once.
• Copy CoopBot.dll to \BepInEx\plugins\CoopBot\.
• Start a run and press H.

Build from source

dotnet build -c Release -p:GamePath="C:\path\to\Enter the Gungeon"

The csproj references the game's Assembly-CSharp.dll, Unity and BepInEx/Harmony DLLs from GamePath (default G:\SteamLibrary\steamapps\common\Enter the Gungeon) and copies the result to BepInEx\plugins\CoopBot\ automatically. Close the game before building (the DLL is locked while it runs).

Default controls (rebindable in the pause menu or the BepInEx config)

| Key | Action |

|-----|--------|

| H | Summon the bot; afterwards order it (interact / pick up / smash / attack the enemy under the cursor / regroup) |

| Shift+H | Dismiss the bot (saves its loadout) |

| J | Cycle bot character (only while the bot is not active) |

| N | Bot drops its equipped weapon |

| U | Bot uses its active item |

| B | Bot drops its active item |

Config file: BepInEx\config\ (Controls, Character, CoverPreference, ShowHints).

Notes

• Not affiliated with Dodge Roll or Devolver Digital. No game files are included in this repository.
• Behaviour is tuned by playtesting; expect rough edges. Bug reports with BepInEx\LogOutput.log are welcome.