Software engineer · game AI educator · YouTube
Teaching machines
to think inside
game worlds.
Aaron Castelyn — Almost 30 years in software engineering, now applying that depth to AI-driven NPC behaviour in Unreal Engine. Workshops, videos, and experiments at the intersection of code and games.
30+
Years engineering
1.3K
YouTube subscribers
2
Workshops available
AI Trends
AI Trends — 11 May 2026
A study published in Science by researchers at Harvard Medical School and Beth Israel Deaconess Medical Center found that an OpenAI reasoning model outperform
A study published in Science by researchers at Harvard Medical School and Beth Israel Deaconess Medical Center found that an OpenAI reasoning model outperformed experienced physicians at diagnosing patients and managing care using only electronic health records from a Boston emergency department. The result marks one of the clearest demonstrations yet of frontier AI surpassing specialist human performance in a high-stakes clinical setting.
Read this edition →Workshops
Hands-on. Three hours. You leave with working code.
Live workshops built around real Unreal Engine projects from the channel.
Train Smarter NPCs with UE5 & PyTorch
3 hours live
$495$995
Join waitlist →NPC Personalities with a Local LLM in Unreal Engine
TBD
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Why Your NPCs Can't Find Cover And The System That Fixes It
Why NPC pathfinding breaks down when searching for cover — and the system that makes it work reliably.
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How To Do Animation State In Unreal Animation Framework
Setting up animation states correctly inside Unreal Engine's new Animation Framework.
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Train Your NPC's Personality For Better Behavior
Using training data to give NPCs distinct personality-driven behaviour patterns.
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