Endless Space - Collection is a turn-based 4X strategy game where you guide one of several unique civilizations across procedurally generated galaxies. You explore star systems, colonize planets, research technologies, manage economies and diplomacy, then engage in fleet combat or race toward victory conditions like domination or galactic wonders. Most players experience it through long single-player campaigns against AI or occasional multiplayer sessions, often sinking dozens of hours into a single galaxy as empires expand and complexity grows. Unlike real-time games, performance in Endless Space is driven almost entirely by CPU work. Late-game turns with hundreds of colonized systems, multiple competing empires, large fleets, and detailed simulations can create noticeable delays on weaker processors. The user interface also needs to stay responsive when navigating dense menus, diplomacy screens, and planetary management views. Visual demands stay low even on maximum settings thanks to the older Unreal Engine 3 foundation, so higher resolutions or advanced graphics options add almost no extra load. Common pain points appear after 100+ turns when galaxies become crowded: turn processing slows, menus feel laggy, and the "just one more turn" loop turns frustrating. Many players mistakenly build high-end GPUs expecting visual intensity only to discover the game is far more sensitive to CPU performance and RAM capacity for handling large datasets. Before choosing a PC, understand that sensible hardware for this game prioritizes strong CPU cores, fast memory, and reliable storage over ray tracing or high frame rates that the gameplay never demands.