One-Move Chain

Place a single piece.

Hit start, and the frozen steel ball and wooden dominoes come alive. They roll, topple and collide — if the chain rings the brass bell, you win.

- Place inside the blue frame. Move with the mouse, rotate with the wheel (or Q/E), click to place.

- Space to start. Missed? Nudge your piece and try again.

- 40 levels. Later levels have fewer working placements.

- Japanese and English (follows your browser language).

How it was made:

Code, on-screen text, the workshop background (ComfyUI) and the music (ACE-Step 1.5, run locally) were made with generative AI. The wooden parts were modelled in Blender, and the sound effects were synthesized from formulas.

Levels were generated procedurally, filtered by physics simulation, and then play-tested and selected by hand.

部品をひとつ置くだけ。あとは木のドミノと鋼の球が連鎖して、真鍮の鐘を鳴らせるか見守るパズルです（日本語対応）。