Classic Marathon 2 is Bungie’s Marathon 2: Durandal revived for modern hardware by the fan community. This free version retains the original data files, offers improvements and is compatible with Windows, Mac and Linux (with Luxtorpeda).
Teenage Mutant Ninja Turtles: Rescue-Palooza! is a free-to-download fan-made game that pays homage to the classic NES and arcade TMNT titles while adding plenty of modern enhancements and a cast of 60 playable characters.
The game that combines Breakout with physics and air hockey, Castle Break, is free for Windows, 100% free to keep, in a giveaway offer for a limited time! Go get it! Castle Break can normally cost US$4.99!
The third-person soulslike horror shooter Outliver: Tribulation is now free for Windows, 100% free to keep, in a time-limited giveaway offer. Go get it! Outliver: Tribulation can normally cost US$7.99!
The ghostly horror adventure Whispering Willows is currently free, 100% free to keep, for Windows, in limited-time GOG’s giveaway offer! Go get it! Whispering Willows normally costs US$1.19!
The game where a bear manages an inn, Bear and Breakfast, is free, for Windows, 100% free to keep, in a giveaway offer that will last for a limited time! Go get it! Bear and Breakfast can normally cost US$19.99!
The action-platofrmer inspired by Hokuto no Ken, Oniken: Unstoppable Edition, is free, for Windows, 100% free to keep, in a time-limited giveaway offer! Go get it! This game normally costs US$4.99.
The medieval adventure full of silliness, Once Upon a Jester, is free for Windows, 100% free to keep, in a time-limited giveaway offer! Go get it! Once Upon a Jester can normally cost US$14.99!
The Last Teleth is a free-to-play, turn-based 2D indie RPG set in a distant galaxy, offering an engaging mix of fantasy and science fiction, and utilizing pixel art with a retro aesthetic that harks back to classics like Chrono Trigger.
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!