Half-Life (1998): blood-soaked corridor near the server panel

Half-Life: Invasion is a Half-Life mod that continues the story immediately after the events of Half-Life. The player finds themselves in the secret Black Mesa laboratory, saved by a space probe, and faces an invasion of well-prepared soldiers. You will explore new areas of the laboratory, gradually uncovering government schemes and secrets.

Half-Life: Recovery is a fan-made sequel to Half-Life: Decay. The main protagonist is Colette Green (Gina Cross's partner), and she, together with Dr. Keller, needs to obtain a portable teleportation device to escape Black Mesa — their survival depends on it.

Xash3D Engine is a game engine designed to run games created on Valve's GoldSrc engine, such as Half-Life and its mods. It offers improved performance, enhanced settings, and stability compared to the original engine.

Stronghold 2 HD Reworked Project is a mod that enhances the graphics by reworking models and textures, improving their quality while preserving the game's original artistic style.

USS Darkstar is a cult mod for Half-Life where you find yourself aboard a "Zoological Research Vessel" studying alien creatures. It all starts as a routine scientific mission, but eventually escalates into a tense adventure in the confined space of a spaceship full of unexpected threats.