zombie apocalypse, custom map, Project Zomboid, survival game, detailed streets, abandoned buildings, overrun nature, barricaded houses, urban environment, forest outskirts, interactive objects, realistic textures, weather effects, day-night cycle, isometric view, dynamic lighting, fog of war, player-built structures, resource management, scavenging for supplies, immersive atmosphere, desolate cityscape, eerie silence, looming threat, strategic gameplay, high tension, detailed environment design, post-apocalyptic world, survival horror.