Killing Floor 2 is a co-op first-person shooter built around wave-based horde survival. Players pick perks, grab weapons, and work together to survive escalating waves of cloned Zeds on compact maps, finishing each round with a boss fight. Most people play in small public or private groups of up to six, focusing on headshots, melee timing, and team coordination while unlocking perks and cosmetics over many runs. At 1440p the game becomes noticeably sharper. Weapon details, Zed textures, and environmental lighting look cleaner, but the increased pixel count also raises the graphics workload. Horde peaks drive the heaviest load: hundreds of enemies, dense blood splatter, particle effects, shadows, and occasional reflections all hit at once. These moments frequently expose GPU bottlenecks and can cause stuttering if the card lacks headroom. CPU demand is moderate but real—AI pathing for the swarm still needs consistent multi-core performance. Common pain points at this resolution include frame-time spikes when particle counts explode and occasional micro-stutter from under-powered GPUs trying to keep up with late-wave chaos. Many players also underestimate storage needs as the game receives regular updates and community maps through Steam Workshop. A balanced system that avoids these issues keeps aiming precise and melee responsive when survival depends on split-second reactions.