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Knockout

by JanKratochvil1 Fighting · Action · made with Claude

Pick or create an MMA fighter and battle in the octagon online or solo.

Be the first to rate Online multiplayer 2026 Vibe Coding Game Jam, rank 228 of 945 Plays in your browser
Play now Opens on playknockout.app in a new tab. Come back here to rate it.

Checked working on Nov 14

This one isn't listed for phones.

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About the game

Trade strikes in the octagon until one of you is beaten. Knockout is a free MMA fighting game.

Ready-made fighters, plus a fighter you build yourself before each match. Solo bouts against the computer. Peer-to-peer online bouts against another person. One-on-one bouts.

According to the creator, the aim is a fun MMA game that is easy to pick up, and an experiment to see whether vibe coding could produce one.

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It ranks #200 of 588 games all-time, going by its jam placement until players rate it. How rankings work

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How it was made

Source: Vibe Jam 2026 submission form. Evidence: the creator's own account.

Added
Code by AI
Most of it
AI provider
Anthropic
AI tools
Claude Code
Players
Online multiplayer
Jam
2026 Vibe Coding Game Jam, rank 228 of 945
Make one like itClaude Code game development, from start to finish
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Questions

Can I play Knockout 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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