BonkCoop

BonkCoop

Online co-op for Megabonk (1-4 players, over Steam). Written from scratch with stability as the first goal.

Beta. Tested with two game instances on one machine (lobby, stages, bosses, revive, game over, final

boss) and in short sessions between two Steam accounts. 3-4 players are untested.

Found a bug or have a suggestion? Open an issue at and attach your

BepInEx/LogOutput.log (and your teammate's, if you can).

Install

Install with a mod manager, or manually: BepInExPack IL2CPP 6.0.755, then put BonkCoop.dll in BepInEx/plugins/BonkCoop.

Every player needs the same version of the mod and of the game (built for Megabonk 1.0.69).

Do not run it together with other multiplayer mods.

How to play

• Main menu → Multiplayer → Create lobby → Invite (Steam overlay). Friends can also join from

their Steam friends list or from the Multiplayer window.

• The host picks the map and the co-op difficulty. Everyone picks a character and presses Ready.
• The host presses Start.

The lobby is built from the game's own windows and buttons, so it follows the game's keyboard and gamepad

navigation.

Rules

• Same map for everyone: every player sees the same chests, shrines and boss gate, and can use all of them.
• Enemies for everyone: each wave spawns once per player, around each of them. Enemies chase the

nearest standing player.

• No pause: the game keeps running while someone picks an upgrade or opens a menu. While you pick an

upgrade or open a chest you cannot be hurt and are not chased; after 30 seconds the first option is

picked automatically. The pause menu does not protect you.

• Down and revive: at 0 HP you go down instead of dying. A teammate revives you instantly by touching

the circle around you. Everyone who is down comes back when the team moves to the next stage.

If the whole team is down, the run ends.

• Shared: XP, the magnet, power-ups (haste, rage, shield...), charge shrines (one player charges it,

everyone picks a stat), map events, the boss, the portals and the crypt (the team crosses together

after a short countdown).

• Individual: gold (you earn it from your own kills) and chests (each player opens their own copy).
• Enemy health grows slightly with the number of players (Easy / Normal / Hard in the lobby).
• Co-op runs count for silver, unlocks and achievements. They are never uploaded to the leaderboards.

Known limitations

• Teammates' projectiles are a visual copy: aura weapons are not drawn and unusual trajectories are approximate.
• The game's enemy cap is shared by all players, so very late waves are smaller per player than in solo.
• Chests opened by another player stay closed on your screen (each player opens their own copy).
• No joining mid-run and no host migration: if the host leaves, everyone continues solo.

Español

Cooperativo online para 1-4 jugadores por Steam. Menú principal → Multijugador → Crear sala →

Invitar. El juego y el mod muestran los textos en español si el juego está en español.