20 years ago, Epic MegaGames released their brand new game at the time--Unreal. Now that it's been two decades since the release of the game, Epic is celebrating by making Unreal: Gold Edition free, for a limited time. You can claim the game on both GOG and Steam, and if you do so, you get to keep the game in your library for good. Normally, the game is $10. The offer will only last for two days.
Steam
GOG