- Set terrainSheet path to actual image file in artwork configuration - Update civilization-terrain.png sprite sheet - Reposition top-right HUD buttons 100px left for better spacing
Implement a complete turn-based strategy game with: - Deterministic headless engine: cities, units, combat, research, governments - Seeded world generation with noise-based terrain, continents, quality scoring - Isometric map renderer with procedural fallbacks and optional sprite sheets - AI rivals with strategy phases, diplomacy, trade routes, and unit control - Full UI: setup, city screen, tech tree, diplomacy, spaceship tracker, victory - 80 techs, 51 units, 26 buildings, 11 terrains, 6 governments, 5 difficulties - Comprehensive headless verification suite (rules integrity, worldgen, combat, AI self-play)