--- title: Opus 5.5 Just Took Over Unreal Engine | daily.dev description: Check out NeoStack (So you can use AI inside Unreal): https://bit.ly/NeoStack Or get it on FAB: https://bit.ly/NeoStackFab I put Opus 5.5 inside Unreal Engine... canonical: https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Opus 5.5 Just Took Over Unreal Engine | daily.dev og:description: Check out NeoStack (So you can use AI inside Unreal): https://bit.ly/NeoStack Or get it on FAB: https://bit.ly/NeoStackFab I put Opus 5.5 inside Unreal Engine... og:url: https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s og:image: https://api.daily.dev/og/posts/paNBtUY4s.png og:image:alt: Opus 5.5 Just Took Over Unreal Engine og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Opus 5.5 Just Took Over Unreal Engine **[YouTube](https://daily.dev/sources/youtube)** · 24 min read · 0 upvotes · 0 comments ## Summary Check out NeoStack (So you can use AI inside Unreal): https://bit.ly/NeoStack Or get it on FAB: https://bit.ly/NeoStackFab I put Opus 5.5 inside Unreal Engine with NeoStack and told it to build a Souls-like game. Enemy AI, combat, target lock, dodge, health bars, the whole level and even the 3D models made in Blender. Everything you see on screen was built by the AI. 0:00 Opus 5.5 inside Unreal Engine 0:38 The result: a Souls-like made 100% by AI 1:23 NeoStack, the plugin behind it 2:00 Setting up Opus 5.5 in NeoStack 2:28 Enemy AI in one prompt 4:00 Health system and health bars 4:50 Designing the asset pack 6:25 Building the 3D models in Blender with Claude Code 7:49 First playtest 8:35 Target lock system 9:48 NeoStack vs Epic's official MCP 11:04 Testing the target lock 12:38 The AI made 3D models 12:59 Importing everything into Unreal 14:21 Building the level with AI 15:32 Two AI agents at once: combo combat 16:22 The level reveal 18:49 The AI playtested its own game 19:12 Combat is working 20:12 Camera shake and dodge 21:29 Final prompt: swords 21:48 The finished prototype 22:08 AI made characters on the UE5 mannequin rig 23:09 Get NeoStack opus 5.5, claude opus 5.5, claude code, unreal engine 5, ue5, unreal engine ai, ai plugin unreal engine, neostack, unreal engine plugin, ue5 tutorial, unreal engine tutorial, souls like game unreal engine, soulslike ue5, enemy ai ue5, behavior tree unreal engine, unreal engine blueprints, ue5 blueprints, lock on system ue5, dodge system ue5, combat system ue5, blender ai, ai 3d models, unreal engine mcp, unreal engine 5.8, ai game development, game dev ai, make a game with ai, indie game dev #ad ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#unreal-engine](https://daily.dev/tags/unreal-engine) [View this post on daily.dev](https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Opus 5.5 Just Took Over Unreal Engine","url":"https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s"},"datePublished":"2026-10-02T16:33:50.521Z","dateModified":"2026-10-02T18:21:00.240Z","description":"Check out NeoStack (So you can use AI inside Unreal): https://bit.ly/NeoStack\nOr get it on FAB: https://bit.ly/NeoStackFab\n\nI put Opus 5.5 inside Unreal Engine...","image":"https://i.ytimg.com/vi/0zNQSPiy8fM/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/0zNQSPiy8fM/sddefault.jpg","isAccessibleForFree":true,"articleSection":"YouTube","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"YouTube","logo":"https://media.daily.dev/image/upload/s--W5zMumpP--/f_auto/v1725350181/logos/youtube","url":"https://daily.dev/sources/youtube"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/opus-5-5-just-took-over-unreal-engine-panbtuy4s","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"unreal-engine","timeRequired":"PT24M","video":{"@type":"VideoObject","name":"Opus 5.5 Just Took Over Unreal Engine","description":"Check out NeoStack (So you can use AI inside Unreal): https://bit.ly/NeoStack\nOr get it on FAB: https://bit.ly/NeoStackFab\n\nI put Opus 5.5 inside Unreal Engine...","thumbnailUrl":"https://i.ytimg.com/vi/0zNQSPiy8fM/sddefault.jpg","uploadDate":"2026-10-02T16:33:50.521Z","duration":"PT24M","url":"https://api.daily.dev/r/paNBtUY4s","embedUrl":"https://www.youtube.com/embed/0zNQSPiy8fM"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"YouTube","item":"https://daily.dev/sources/youtube"},{"@type":"ListItem","position":3,"name":"Opus 5.5 Just Took Over Unreal Engine"}]} ```