This build delivers more than enough performance for Half-Life 2: Lost Coast at 1080p while keeping costs reasonable and creating a system useful for many other games. The AMD Ryzen 5 7600X provides strong single-threaded responsiveness for the Source engine's AI, physics calculations, and overall system snappiness without overspending on cores the short demo will never use. Paired with the ZOTAC Gaming RTX 5060 8GB, it offers ample GPU power for maxed HDR, anti-aliasing, and anisotropic filtering so the monastery's lighting and coastal vistas appear exactly as intended. The CPU-GPU balance makes sense because Lost Coast is lightly threaded overall and only mildly GPU-bound by its post-processing effects. The Ryzen 5 avoids the bottleneck risk of weaker older CPUs while the RTX 5060 handles modern driver and feature compatibility that older cards sometimes struggle with. Supporting components round out the system without mismatched priorities: the ASUS Prime B650-PLUS WIFI motherboard and 16GB DDR5-6000 RAM ensure stable operation, the Kingston NV3 1TB SSD provides fast load times for the demo and commentary tracks, and the Thermalright Peerless Assassin cooler keeps the Ryzen 5 running quietly under load. The Montech AIR 903 case and MSI MAG A650BN 650W power supply complete a practical, future-proof setup that sidesteps the common mistake of overbuilding for 2005-era demands. Together the parts create a cohesive, reliable PC that lets you focus on the nostalgia and technical showcase instead of worrying about performance.