Fallout 2 is a 1998 isometric turn-based RPG set in a post-nuclear wasteland. Players create a custom character, explore a vast open world through 2D sprites, engage in dialogue-heavy quests, manage skills and inventory, and fight in tactical turn-based combat. Most players spend 30-100 hours per playthrough, often replaying with different builds, and modern runs almost always include community patches like sfall and the High Resolution Patch plus large content mods such as the Restoration Project. Unlike modern 3D games, performance in Fallout 2 is not about high frame rates. The engine was built for late-90s hardware and remains single-threaded today, causing it to hammer one CPU core with constant polling and scripting even when the game appears idle. This leads to high CPU usage spikes, potential crashes on newer Windows versions, and choppy mouse movement in extended sessions. Patches improve compatibility and allow windowed or higher-resolution play, but they do not remove the engine's quirks, and added mods increase scripting density and storage demands. Common pain points include random shutdowns or stuttering from single-core saturation, long load times without a fast SSD, and instability when running unpatched versions on modern hardware. Many new players mistakenly focus on powerful GPUs thinking they will help, yet the game renders in 2D and places almost no load on the graphics card. A sensible PC for Fallout 2 therefore prioritizes stable single-core CPU performance, modern OS compatibility, quick storage for mods, and enough RAM to keep everything running without hitches during marathon role-playing campaigns.