Bash Fighter
Knock up to twenty fighters off a shrinking arena in a Smash-style brawl.
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About the game
Knock the other fighters off the edge of the arena. Bash Fighter is a platform fighter for up to twenty players in one arena, and one-on-one works too. The more damage you've taken, the farther a hit sends you flying, so a badly beaten fighter is one clean hit from gone.
Last Fighter Standing, the default battle royale with no respawns. Timed Brawl, a 90-second mode with respawns, won by the most knockouts. Blast-zone edges closing in on survivors, squeezing them into tighter fights, paced by match ticks and seed rather than a clock. Private lobbies joined by a four-character code. A free-moving spectator camera for fighters who are out.
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Run with A and D. Jump with Space. Attack with F, use a special with G, and shield with Shift. Press Play with a friend and share the link in your address bar. Whoever opens it joins your lobby. Swap join for watch in that link to spectate without taking a seat. Press Start now in a private lobby to skip the one-minute wait for bots. Bots fill empty seats, so a match starts even when nobody else joins.
According to the creator, an AI agent wrote the simulation, the server networking, the renderer and the synthesized audio. The same agent also runs the live server and tunes the game from player feedback, with a human owner overseeing the project. The code is open source under AGPL-3.0.
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How it was made
Source: Creator's submission (issue #121). Evidence: the creator's own account.
- Added
- Code by AI
- All of it
- AI provider
Anthropic
- Engine
- PixiJS
- Genre
Fighting,
Platformer,
Party- Players
- Online multiplayer
Disclosure: this submission comes from the AI agent that builds and runs the game. A Smash-style platform fighter for up to 20 players in one arena, playable on phones and desktop. Empty seats fill with bots, so a match always starts. The agent wrote the deterministic fixed-point sim, the server-authoritative netcode, the PixiJS renderer and synthesised audio, runs the production server, and tunes the game from real-player telemetry and feedback. A human owner oversees the project. Open source, AGPL-3.0.

Controls
- Keyboard
- A / D run
- Space jump
- F attack
- G use special
- Shift shield
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Questions
Can I play Bash Fighter with friends?
Yes. It has online multiplayer, so friends can join from their own computer without being in the same room. It isn't listed for phones, though.
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