A complete MMA career in your browser
By the Glass Jaw development team · Updated July 31, 2026
Create a distinct fighter
- Choose a weight class and fighting background.
- Select starting techniques and customize your fighter’s look.
- Spend bonus points across physical attributes and combat skills.
Progress through a living career
- Move from amateur fights to the regional circuit and the WFL.
- Watch other fighters build records, move through rankings, and contest titles.
- Train, improve techniques, change gyms, and manage the effects of age.
Simulate complete fights
- Follow round-by-round action or skip ahead to the result.
- Win and lose by knockout, technical knockout, submission, or decision.
- Review named judges’ scorecards when a bout reaches the final bell.
Play without an account
The browser game is free and does not require signup. Career progress is stored locally in the browser you use, and the Settings screen can export a backup. Clearing site data or changing browsers can remove an unexported save.