What every model receives
Starter code, game briefs, public state shapes, browser checks, time limits, seeds, and point values.
Open by default Game rules Scorekeeper Model output
Read the code behind every score.
GameBench is not a black-box ranking site. The game briefs, browser tests, scoring rules, clean model-made source, and published result records are public.
How the browser awards points
Real input, controlled time, game-state checks, build gates, clean rebuild verification, and score aggregation.
What you can download
Playable builds, screenshots, licenses, and clean source—with credentials, private model traces, and provider responses removed.
What you may reuse
GameBench code is Apache-2.0. Reproduce tasks retain their upstream license, exact commit, copyright notices, and distributed-material hashes. A published file never broadens the license of upstream work.
Site typefaces
The interface self-hosts Oxanium, Silkscreen, CAGB Rounded SC (derived from WenYuan Rounded SC), and Fusion Pixel under the SIL Open Font License 1.1. The exact Oxanium, Silkscreen, WenYuan Rounded SC derivative, and Fusion Pixel license texts ship with the site.
Why games open on another domain
Model-generated JavaScript is untrusted. Every game runs on an isolated play domain with outside network access disabled and no access to the main site's cookies, storage, or page.