colony simulation game, RimWorld, expansion pack, sci-fi, strategy, top-down view, detailed textures, advanced structures, new biomes, alien creatures, mechanoids, cybernetic enhancements, tribal to spacer tech, mod support, dynamic weather, interactive ecosystems, complex social dynamics, caravan expeditions, space travel, orbital trade, detailed character customization, rich storytelling, procedural generation, ambient lighting, strategic gameplay, in-depth resource management, survival challenges, complex base building, diverse character traits, high replay value.