Half-Life 2 is a linear first-person shooter built on the Source engine where players control Gordon Freeman through a dystopian City 17, using the gravity gun for physics-based puzzles, vehicle sections, and combat against the Combine. Most players complete the single-player campaign once for its story and gunplay, then return through the active modding community for visual overhauls, improved AI, co-op conversions, or RTX Remix ray-traced versions. The 20th Anniversary Update added workshop support, higher shader options, and developer commentary, making modern replays far more appealing than the 2004 original. At 1440p the game's distinctive art direction—brutalist architecture, detailed alien technology, and atmospheric lighting—gains noticeable clarity, but the real demands come from mods. High-resolution texture packs, enhanced particle effects, and advanced lighting can increase GPU load while the engine's physics simulations and AI crowds remain primarily CPU-sensitive. Vehicular sections on Highway 17 and the intense Citadel battles test frame-time consistency because stutters break the precise timing required for gravity gun puzzles and reactive combat. Common pain points include single-threaded engine quirks that cause micro-stutters on modern CPUs with poor cache or clock speed, plus mod incompatibilities that surface if the GPU lacks enough VRAM for high-res assets. Before choosing a PC for 1440p Half-Life 2, understand that the base game runs on modest hardware but popular visual and gameplay mods quickly shift the workload toward the graphics card. A sensible system therefore prioritizes a strong single-core CPU for the Source engine's legacy bottlenecks, a GPU with ample VRAM and efficient raster performance for 1440p, and enough system RAM to keep multiple mods loaded without paging to storage.