GOG is offering three classic PC games from the 1990s for free until May 8. These titles, exclusive to GOG, are not available on platforms like Steam or the Epic Games Store. The games include:
1. The Adventures of Robbo - A puzzle game that debuted in Poland in 1989 and in the U.S. in 1993, where players guide a robot through levels collecting bolts.
2. Heartlight - A puzzle game released in Poland in 1990 and in the U.S. in 1994, where players help an elf named Percival collect hearts while navigating levels.
3. Electro Man - An MS-DOS exclusive platformer recognized as the first professional-level PC game developed in Poland, featuring a cyborg named Jacek seeking vengeance after an alien attack.