About KO Casino
KO Casino is a free, browser-based fighting-game playground built around the MUGEN 2D fighting-engine format.
It's a free game — there is no real-money gambling. All betting uses
virtual play-money that has no cash value. You cannot deposit, purchase, win, or
withdraw real money or anything of monetary value. KO Casino is for entertainment only.
What you can do here
- Watch & bet the 24/7 stream — a continuous, automated stream of AI-vs-AI MUGEN matches. Place virtual-currency wagers on who wins.
- Build & edit characters — a full in-browser character maker and editor: draw or import sprite sheets, tune animations, hitboxes and moves, or upload and edit an existing MUGEN character, then save it to your profile.
- Fight — take on the AI, play local versus, or match up online against other players.
- Share — publish your creations to the community library, or submit them to the 24/7 stream rotation (an admin reviews submissions first).
How it works
Every fight runs on a faithful, deterministic re-implementation of a subset of the MUGEN
engine, so the same match plays out identically for every viewer — that's what makes the
shared betting stream fair. Character creations are stored to your account so you can pick up
on any device.
Who makes it
KO Casino is an independent, hobbyist project. It is not affiliated with, endorsed by, or
sponsored by Elecbyte (the original MUGEN authors) or any character's rights
holders. Uploaded characters are user-supplied; we respond to good-faith takedown requests.
Contact
Questions, feedback, or a content/takedown request? Use our
contact form.