bouncy castle
A free platformer game — play it in your browser, no install. Momentum-based vertical platformer in a single HTML file — speed-scaled jumping, wall bounces, accelerating camera. Zero dependencies, built for Vibe Jam 2026.
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Controls: Move: ← / → or A / D · Jump: space or ↑ · Restart: any key on game over
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Open the live demo Source on GitHub⚔ This or That: Platformer games
From the README
A browser-based vertical platformer inspired by the classic Icy Tower. Run, jump, wall-bounce, and chain multi-floor combos as the camera accelerates beneath you.
Built as a single-file HTML5 Canvas game for Vibe Jam 2026.
Build horizontal speed before jumping — faster running means higher jumps, which means skipping more floors and bigger combos.
Tunable constants live in the CONFIG object at the top of index.html for fast iteration on game feel.
See bouncy-castle-spec.md for the full design doc covering mechanics, scoring, visual effects, and v1 scope.
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