This build is engineered for the specific demands of running large, heavily modded Cities: Skylines cities at 1440p. It accepts a moderate total cost by focusing money on the components that directly address the game's biggest bottlenecks—CPU simulation threads and memory capacity—while using a capable but not excessive GPU for the resolution. The result is a system that keeps the simulation clock moving smoothly even as you layer traffic, services, and Workshop content across several map tiles. The AMD Ryzen 5 9600X provides six strong Zen 5 cores that scale well with the Unity engine's multi-threaded simulation work. This keeps pathfinding, traffic, and citizen AI responsive at high populations where older or lower-core CPUs typically bog down. Paired with it, the PNY GeForce RTX 5070 12GB comfortably drives 1440p rendering, handling the extra pixels and draw calls created by dense buildings, vehicles, and visual mods without becoming a bottleneck. The 12GB of VRAM proves useful when high-resolution textures and custom assets are active. System balance comes from the 32GB DDR5-6000 RAM kit, which prevents the RAM exhaustion that plagues modded Skylines playthroughs, and the fast 1TB Kingston NV3 NVMe SSD that reduces asset streaming hitches. The ASUS B650 WiFi motherboard, Thermalright Peerless Assassin cooler, Montech AIR 903 case, and 650W MSI PSU create a stable, quiet platform that avoids overspending on graphics power that would sit idle while the CPU and memory do the heavy lifting. This combination delivers the practical stability and visual clarity that 1440p city builders need without mismatched priorities.