Megabonk Multiplayer: Is There Co-op?
Updated · Patch covered: Megabonk v1.0.69 (Feb 4, 2026), still the latest on Steam as of Oct 22, 2026
No — Megabonk has no official multiplayer or co-op. It is single-player on Steam. The developer wants to add multiplayer "down the line" but has announced no date. You can play online co-op today only with unofficial mods from Thunderstore: MegabonkTogether (up to 6 players) or BonkWithFriends (Steam invites).
What the developer has said
- Sep 28, 2025 (v1.0.7): "I definitely wanna try to add multiplayer down the line, but that is a very time consuming task."
- Oct 8, 2025 (v1.0.12): multiplayer listed under "more major stuff I wanna look at once most of the common feedback has been addressed".
- Since then: no multiplayer news. The latest patch is v1.0.69 (Feb 4, 2026). See the update status.
Co-op mods compared
| Mod | Players | How you connect | Version (date) | Downloads |
|---|---|---|---|---|
| MegabonkTogether (DShad) | Up to 6 | Random queue or private room; peer-to-peer with relay fallback | 5.1.0 (Jul 13, 2026) | ~37,000 |
| BonkWithFriends | Steam lobby | Steam invite or "Join Game" from your friends list; drop-in, drop-out | 0.5.2 (Oct 17, 2026) | ~34,000 |
| BonkCoop | 1–4 (3–4 untested) | Steam lobby with invites; built for Megabonk 1.0.69 | 0.4.0 beta (Oct 10, 2026) | ~1,300 |
Download counts and versions read from Thunderstore on Oct 22, 2026. All three are fan projects, not made or supported by vedinad.
What each mod syncs
- MegabonkTogether: weapons and upgrades, projectiles, monsters, chests, shrines, portal and challenges; death cam; balance scaled to player count. Its author calls it a work in progress that "probably won't work with other non cosmetic mods". Proton / Steam Deck support is experimental (v5.0.0).
- BonkWithFriends: world generation, interactables, chests, weapons, XP and level-ups; spectator mode and revives; in-game chat on Enter.
- BonkCoop: same map for everyone, a wave of enemies per player, no pause (you cannot be hurt while picking an upgrade), revives.
How to set up Megabonk co-op (BonkWithFriends example)
- Install a mod manager (r2modman or Gale) and pick Megabonk. See the mods guide.
- Install BonkWithFriends; the manager adds BepInExPack IL2CPP automatically.
- Launch the game from the mod manager ("Start modded").
- Host: main menu → Multiplayer → Create Multiplayer Game. Friend: accept the Steam invite, or right-click the host in Steam Friends → Join Game.
- Everyone must run the same mod version on the same game version. Use only one multiplayer mod at a time.
Back up your save before modding. v1.0.64 added a "recover progress from Steam achievements" button under Settings → Other, but it cannot restore in-game achievements that are not on Steam.
FAQ
Is Megabonk multiplayer?
No. Megabonk is single-player only; Steam lists no co-op or online play. Co-op exists only through unofficial mods.
Will Megabonk get official multiplayer?
The developer said on September 28, 2025: 'I definitely wanna try to add multiplayer down the line, but that is a very time consuming task', and listed multiplayer as future major work on October 8, 2025. No date has been announced, and there has been no patch since February 4, 2026.
Can I play Megabonk co-op with friends?
Only with a fan mod such as MegabonkTogether (up to 6 players) or BonkWithFriends (Steam invites). Every player needs the mod, the same mod version and the same game version.
More Megabonk guides
Sources
- Megabonk on Steam (store page, app 3405340) — price, platforms, features, reviews
- Steam announcement, Sep 28, 2025 — Patch #2 / v1.0.7
- Steam announcement, Oct 8, 2025 — v1.0.12 (leaderboards, balancing, future updates)
- Steam announcement, Jan 25, 2026 — 'H A T S' (v1.0.64)
- Thunderstore — MegabonkTogether by DShad
- GitHub — Fcornaire/megabonk-together (source code)
- Thunderstore — BonkWithFriends
- Thunderstore — BonkCoop (BonkCoop team)
- Thunderstore — Megabonk mods (all packages)
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