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Claude Opus 5.5 builds a 3D shooter for 20-year-old J2ME phones from one prompt

Asked for a 3D shooter for 20-year-old J2ME phones, Opus 5.5 reportedly built the whole game from one prompt: a custom integer-only Java 3D engine, models, textures, four maps and eight MIDI tracks in a half-megabyte file that ran first try on an old Nokia.

0xMarioNawfal
@RoundtableSpaceArchived 26 days agoOriginally posted 2026.10.10
0xMarioNawfal @RoundtableSpaceOriginally posted 2026.10.10
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Someone asked Opus 5.5 for a 3D shooter for 20-year-old J2ME phones, and says it built the whole game from one prompt. → Its own 3D engine in Java, using only integer math → Models, textures, four maps, eight MIDI tracks and voice lines → A half-megabyte file that ran first try on an old Nokia Reddit: https://www.reddit.com/r/ClaudeAI/comments/1x120gj/opus_55_can_make_games_for_2_decade_old_phones/

x.com/roundtablespace/status/2108727967073350062Archived 2026.10.10 10:11