We Built an AI That Writes Entire Game Engines From Scratch
What if you could describe a game in plain English — and an AI builds the entire engine for you?
Cadence by Constellar is the world's first AI-native game engine framework. No boilerplate. No middleware hell. Just describe what you want, and a coordinated swarm of AI agents generates
production C++ code, compiles it, and hands you a working executable.
This isn't a wrapper around Unity or Unreal. Cadence generates bespoke engines from scratch — ECS architecture, pluggable rendering (Vulkan, D3D12, Metal, WebGPU), physics (Jolt, PhysX,
Bullet), networking (rollback, lockstep, dedicated servers), audio, animation — all assembled declaratively from YAML specs.
Under the hood:
→ A Builder Agent that generates and validates C++ engine code
→ A Game Design Agent with 8 specialist sub-agents that produce complete design documents
→ A Researcher Agent that discovers papers and libraries, evaluates them against engine interfaces, and writes integration proposals
→ A Spearhead Agent that invents entirely new algorithms and rendering techniques
→ A JIT Trends system that turns real-time cultural signals into game concepts
→ Template + AI hybrid pipeline: deterministic Jinja2 scaffolding + Claude-powered domain logic
The agents don't just generate code — they review it, correct it, verify build determinism, and hand off validated projects to each other through structured workflows with human review
checkpoints.
Natural language → compiled executable. That's the pipeline
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