Widelands is a free, open-source, extensible RTS with multiple single and multiplayer campaigns, inspired by The Settlers II but with significantly more variety and depth. It supports mods, allowing you to create tribes and worlds.
Mega R-Type
Mega R-Type is an excellent remake of the arcade R-Type created by fans in the form of an Everdrive and emulator compatible ROM for the Mega Drive, console also known as Genesis!
Genesis (Mega Drive) emulators
List with some Genesis (Mega Drive) emulators, with some info, download links and stuff for those who don’t have the actual hardware or just want to play ROM in their PCs. These programs are all free and should run on modern systems.
Weapon of Choice DX
The psychedelic run and gun shooter Weapon of Choice DX is now available for Windows, 100% free to keep, in a limited-time giveaway offer! Go get it! Weapon of Choice DX can normally cost US$5.99!
Gigantic: Rampage Edition
The third-person shooter MOBA Gigantic: Rampage Edition is currently free, for Windows, 100% free to keep, in a limited-time giveaway offer! Go get it! Gigantic: Rampage Edition can normally cost US$19.99!
The Callisto Protocol
Dead Space’s spiritual successor, The Callisto Protocol, is currently free for Windows, 100% free to keep, in a time-limited giveaway offer! Go get it! The Callisto Protocol can normally cost US$59.99!
Milan Has Fallen
Milan Has Fallen is a free and indie top-down shooter game where you fight against the undead in an Italian city modeled directly from Google Maps! It combines a chilling atmosphere with thrilling top-down shooting action!
Super Switch
The challenging platform game Super Switch is currently free, 00% free to keep, for Windows, in a time-limited giveaway offer! Go get it! Super Switch can normally cost US$4.99!