Haunted brick interior with zombie cop enemy in They Hunger Relit mod

Half-Payne is a gameplay mod for Half-Life that brings Max Payne elements: bullet time, shootdodge jumps, painkillers, and a reworked combat system, letting you experience the original story in a new style.

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.

Xash3D FWGS - a fork of the Xash3D engine aimed at improving compatibility, performance, and functionality for running GoldSrc-based games such as Half-Life and its mods.

Azure Sheep: Enlightened - a remaster of the original Azure Sheep mod with numerous changes affecting textures, HUD, weapon mechanics, levels, NPCs and much more.

Opposing Force Redux is a large-scale mod for Half-Life: Opposing Force that completely overhauls the graphics and sound. New models, sprites, sounds, and refined maps bring the game's audiovisual elements up to modern standards.