Claude Opus 5.5 builds a tide sandcastle game in 4 prompts
Using Opus 5.5 and three.js with only 4 prompts, the author made a sandcastle-building game where you build for 3 minutes before a simulated tide washes it away, with scores and a replay link.
Build a sandcastle in 3 minutes, then watch a real simulated tide take it 🏰🌊 Built by Claude Opus 5.5 in 4 prompts + @threejs. No game engine, no artist. Tide day: the water and sand are simulated, not animated. Moats fill, walls slump, towers sag into the foam. Everyone gets the same beach, the same waves and the same bucket of sand each day. Your score is how long the top of your keep stays dry. Pat your walls hard: packed sand lasts four times longer. When it falls you get a 10-second time-lapse of the whole tide, and a link that replays your castle for a friend. Post your score 🏰 Link to play below 👇