Desert base environment with smoking chimneys in Renegade X fan game

HL4K: RT Reloaded is a 4K texture pack for the XashRT engine (Xash3D branch with tracing support) that replaces the original Half-Life textures with highly detailed 4K versions and adds real-time ray tracing: dynamic lighting, reflections and shadows, while preserving the atmosphere and gameplay of the classic game.

Half-Life: The Infected is a mod that adds a new 28-map campaign for Half-Life. In it, you play as an electrical intern named Gerald Backman, who finds himself at the epicenter of a resonance cascade and faces horrors from the Xen world, as well as the sinister Race X.

Command & Conquer Unofficial Patch — an unofficial update for the original Command & Conquer game (1995). The patch aims to improve compatibility with modern systems, fix bugs, add support for multilingual versions and high resolutions, as well as provide tools for creating custom missions and modifications.

FreemanAPI - an easy-to-use API for implementing movement mechanics from the original Half-Life and Half-Life 2 in other games.

The Power of The West (TPOTW) is a mod for Generals Zero Hour that aims to significantly improve the game's world by replacing its outdated models and gameplay with more advanced ones, adding numerous new units, models, and stunning visual effects.