One of these two panes will hold. It’s a manga-style crossing game that’s provably fair.
Three chibi runners stand at the edge of a gorge. Between them and the platform on the other side is a bridge made of pairs of glass panes. In every pair, one pane is tempered and the other shatters. You choose left or right, the runner at the front jumps, and either the glass holds or someone falls.
Every pane you get past raises your payout, and you can cash out whenever you like, as long as you still have runners left. The whole bridge is locked in before the first step, so every run can be checked afterwards.
A runner in mid-air, the glass creaking, and then either a CRASH or a safe landing.
Speed lines, comic sound-effect lettering, a UI styled like manga panels and cherry blossoms drifting through the gorge.
It returns exactly 97% at every step, and the bridge is sealed in advance so you can check it.
These screenshots were captured straight from the game. Tap any of them to see it bigger.
Choose Easy, Normal or Hard (10, 18 or 24 pairs of panes) and set your stake on the stake sheet.
Pick left or right. Every pair is a fair 50/50.
If it’s safe, the multiplier goes up. If it breaks, the next runner walks out onto the pane you now know is safe.
You can cash out from the third pair onwards, or cross every pair to win the top prize.
Panes shatter outwards from where the runner lands, breaking into real prism-shaped shards.
The runners hop, squash, stretch, flail and cheer without a single pre-made animation clip.
The UI is built entirely in code, and it rebuilds itself when you rotate the screen, fold or unfold a foldable, use split-screen or switch to a cover display.
The multiplier for every step is shown on screen, and you can set it to cash out automatically at a step you choose.
There’s a 16-minute timer. If it runs out, your runners walk off and you’re paid at the step you’ve reached.
Options for vibration, flashing effects and gore, which are saved between sessions.
I made this game on my own, so I handled the design, the code, the art pipeline, the audio and the release.
A run reaches pair n if it makes no more than two wrong guesses in n flips. Each step pays 0.97 divided by the chance of reaching it, cut down to four significant figures, so every cash-out point has the same 97% expected return. On Hard, the top payout is 54,060×.
The bridge layout is decided before the first step. A seed taken from a blockchain block feeds a Mulberry32 random generator, a SHA-256 commitment of the seed and layout is shown before you start, and the full draw is revealed when the run is settled.
GameBootstrap builds the world, the director, the UI and the audio while the game runs, behind a manga-style loading screen. The material names are how it talks to Blender: ToonLibrary replaces each imported material with the right toon material.
The camera framing adjusts to the screen shape, from tall phones to foldables and desktop windows, and the panel UI rebuilds itself when the display changes shape.
Blender/build_assets.py creates the runners, bridge, islands, spires, lanterns and props and exports them straight into the Unity project.
Hand-written Toon, Glass, Sky, Water and Particle shaders give the game its cel-shaded manga look.
Koto and taiko music, sound effects from Kenney and other Creative Commons sources, and the Bangers, Comic Neue and Dela Gothic One fonts for the manga lettering.
Credits. The Blender assets and shaders are all original. Sound effects come from Kenney and others (CC0 and CC-BY 3.0), the music is "koto" by fx10243 and "Taiko drums" by jobro, and the fonts are Bangers, Comic Neue and Dela Gothic One (OFL). The game only uses virtual coins, and there’s no real-money betting.