Claude Opus 5.5 turns one prompt into a playable ship-loading game
Given a prompt skeleton, Opus 5.5 built Listing, a game where an unbalanced load capsizes the ship, as 816 lines of three.js in one file, completing the working run in 39 minutes for $6.22.
I pasted the prompt skeleton from this article into Claude Opus 5.5 and picked one rule off its list: a ship that sinks if you load one side It built Listing. Containers come one at a time off a crane, the hull rolls toward the heavy side, past 12° the low stack slides into the sea, lose 4 and she capsizes > 816 lines of three.js, one file, no assets > 39 minutes and $6.22 for the run that worked > the first try hit my 50-minute timeout. I asked for ONE file in one go and it finished The cursor in the video is the game's own scripted playtest. It overloads starboard, loses 2 boxes at 13.7°, then saves the ship Every step from an empty folder to a game on a phone is in the article https://polymarket.com/event/anthropic-ipo-closing-market-cap-higher-strikes?via=macintosh
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