USS Darkstar

Half-Life: Signal Lost is an atmospheric story-driven mod for Half-Life, inspired by the Half-Life: Uplink demo. The mod features detailed levels, thoughtful gameplay, and a fresh take on the familiar universe, preserving the spirit of the original while becoming almost a standalone game.

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

FlatOut: Ultimate Carnage No Launcher – a plugin that removes Games for Windows — Live from FlatOut: Ultimate Carnage.

Imperial Mod is a mod that adds a new campaign with its own storyline to Stronghold.

Sven Co-op is a cooperative mod for Half-Life where players team up to complete the campaign and custom maps together, featuring improved AI and new gameplay features.