The Last Colony: how I'm building a They Are Billions-style colony survival RTS with AI (Godot + Claude/Codex, Meshy, ElevenLabs)

Hi! I'm a solo dev and The Last Colony is my first game: a colony survival RTS that tries to bring back the atmosphere of They Are Billions. The clip is day 28, a horde coming out of the forest and hitting my walls. The code is written with Claude Code and Codex. The game runs in Godot 4, the rules are in GDScript and the horde (thousands of zombies at once) is a C++ module. What made this work for me was treating the AI like a team that needs strict rules: the project has a long notes file it reads every session, every rule change sits behind a switch, and there are parity tests that catch it when something changes by accident. Without that, it kept "improving" things I didn't ask for. The units start as Meshy models, but Meshy's animations came out hunched and wobbly, so they go through Blender scripts that fix the posture, then get rendered from the game's camera into sprite sheets in 8 or 16 directions. Walls, towers and the HQ are built from pieces in Blender, because…