Claude Opus 5.5 recreates Fortnite from scratch in 3.5 hours

YouTuber Minimunch showed Claude Opus 5.5 building a playable browser version of Fortnite Battle Royale from scratch in about 3.5 hours, complete with battle bus drop, loot boxes, building and a lethal storm. The model then made Getting Over It, a 3D Terraria and Minecraft in 2.5–3.5 hours each; assets stay rough but lighting and physics carry the scenes.

• Fortnite Battle Royale built in a browser in ~3.5 hours at very high settings
• The model won 2 of 2 matches in 4v4 bot mode
• Getting Over It, 3D Terraria and Minecraft took 2.5–3.5 hours each
• Characters and props look unfinished; lighting and physics stand out