Airborne supply crates descending with parachutes in The End of Days mod

Half-Life: Before takes you to an unusual location for Half-Life mods — the infected ship Black Rock in the middle of the ocean, where you'll encounter various creatures from the Xen world, including zombies, headcrabs, and the genetically modified monster Genmod 262.

Shockwave Single Player Experience is an addon for the C&C: ShockWave mod that adds campaigns from the original Generals and the Zero Hour expansion, as well as new missions in General Challenges.

C&C: Brute Force is a mod for Yuri's Revenge that turns the game into a kind of Tower Defense: you start with minimal forces, defend against endless waves of Yuri's minions, find random supplies, and gradually strengthen your base to eventually reach the dictator himself.

Mental Omega is arguably the best mod for Yuri's Revenge and one of the most ambitious fan projects overall. It not only completely reimagines the original game but also significantly expands it, transforming it into an almost full-fledged sequel with a new storyline, campaigns, factions, and a massive amount of content.

Cold Ice Remastered - a remaster of the classic multiplayer mod for Half-Life featuring improved graphics, new weapons, maps, modes, and lots of features - all in a snowy atmosphere filled with humor and chaos.