Airborne Engineers repairing Power Plant in Red Alert 2 with mod interface

OpenRA is an open-source engine that recreates classic RTS games from the Command & Conquer series and Dune 2000. It rewrites the original engine from scratch, supports modern operating systems, online multiplayer, improved graphics and modifications, but requires the original game files for full functionality.

Serflings is a remake of the classic strategy The Settlers 1 (or Serf City), faithfully reproducing the original gameplay while adding modern conveniences: support for high resolutions, network games, compatibility with original save files, and much more.

Contra is one of the oldest and most popular mods for C&C: Generals Zero Hour. It adds new generals, numerous units, buildings and abilities, improves graphics and AI, introduces a rank system, new maps, sounds and much more, making the game deeper and more diverse while preserving the spirit of the original.

They Hunger N’sane Pack - an add-on that updates the models of the They Hunger mod, offering two versions: a Simple Version with retro models and an HD model Remod Version that requires ZikShadow's Remod. Includes new animations, monster models, sounds, and music to enhance the atmosphere.

A mod for Stronghold Crusader that reimagines the game in the style of Stronghold 1. Say goodbye to deserts and Arabian lords — now you’ll explore lush green landscapes, birch trees, wolves, and familiar European rulers. Features updated textures, a redesigned interface, and immersive medieval music.