Developer builds AI-assisted Godot game, finds sprite consistency needs strict pipelines

A developer rebuilt a Warhammer 40k-inspired game called Ashgate Siege in Godot 4, generating approximately 95,000 lines of GDScript and all sprites using AI agents in around five hours. The project revealed that AI-generated 2D sprite games are harder to manage than 3D, because each sprite is an independent image with no shared geometry to enforce visual consistency across frames. To address issues like drifting proportions, inconsistent lighting, and misaligned walk cycles, the developer shifted to treating image generation like a strict API call, using highly detailed, constraint-heavy prompts that specified exact canvas sizes, grid layouts, color keys, and pose names. Generated sprite atlases were then processed through an automated importer and validated against a test suite running over 17,000 silhouette checks and a 600-frame combat simulation. The core lesson drawn was that nondeterministic AI output requires deterministic, automated enforcement at every downstream stage of the pipeline.