Show HN: Sapient – Agentic Game Development in Unreal Engine (C++, BPs, BTs)
Sapient is an AI-native dev tool embedded into Unreal as a plugin. Sapient is best for gameplay or systems engineers and technical designers, and it supports prototyping through production workflows including: gameplay logic generation (C++, Blueprints, Behavior Trees), Unreal feature integration, refactoring, debugging, project diagnostics, and dependency tracing (code to assets to engine).
Unlike other AI tools that are code only, don’t understand games, or just aren’t integrated into your workflow, Sapient is fully integrated into engine and works along side you in the Editor e.g. no copy-pasting or not being able to understand files. It helps most by speeding up iteration cycles or when understanding what you’re building matters. For instance, it analyzes and understands code, assets, plugins, data, and engine in real-time to help with co-ideation and design (GDD > TDD) to implementation and polishing on production-grade projects.
It’s been a labor of love, and scaling this has been incredibly difficult. For example, one of our early AA studio partners had a Blueprint graph with over 70,000 nodes. Everything we built for 100-node graphs just melted. Battle-testing with studios has led to a multitude of hard-fought lessons, and we're now opening an early beta in hopes of making it even better.
If you're building in Unreal, we’d love to hear from you: 1. Where do AI dev tools help vs fall short in your workflow?
2. What slows down your iteration loop most?
3. For those who try Sapient, where does it shine, where does it break, and what’s missing?
We just launched a free tier where folks can get started testing Sapient immediately. (We also provide unlimited access for 2 weeks if you're going deep on a big project)
If you’re building in Unreal, give it a spin and let us know what you think!
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