GREMBLE.
Workshop · Vancouver B.C.
GRM-16 · Game · In development

Project Sundown

First-person survival strategy in Unity 6, on a deterministic simulation core.

60 fps
Target at 1080p, M4 Mac mini
9
Automated gates
0.00 m
Replay drift
20k+
Baked impostor trees

Features

  • AI coding agents write the code; nine automated gates decide what lands.
  • Deterministic simulation: every run replays with zero drift.

A Technical sheet

Engine
Unity 6.3 LTS, URP 17, Forward+
Architecture
Engine-free C# simulation core. Unity reads through IWorldView and writes through ICommands.
Determinism
One launch seed drives every generator. Every run is recorded and replays exactly.
Scenes
Generated from code and data. Nothing hand-placed.
Data
Items, rules and strings in schema-checked JSON, overridable by mods.
Testing
Core and Unity test suites, play bots and 9 automated gates on every change.
World
Terrain with relief, impostor forest, modelled grass, one colour grade per weather state.
Art pipeline
Headless Blender 5.2, CC0 scans, scripted import and decimation.
Budget
60 fps at 1080p on an M4 Mac mini. 40 fps at 1280 × 800 on Steam Deck.
Process
Designed and play-tested by hand. AI coding agents write the code, and nothing lands without passing the gates.

C Related parts

What's Gremble

A Vancouver workshop that builds tools for public affairs and knowledge work, plus apps, open source, hardware and games.

Who's Jason

Jason Craik founded Gremble. He works in public affairs and political risk in Vancouver, advising on government relations, corporate affairs, M&A, market entry, issues and strategy. About Jason → · LinkedIn ↗