GOG.com now offers Unreal Gold, Epic's first-person shooter, completely DRM-free and completely cost free, as this is free to keep for all who claim their copy by May 24th. The game is also currently free on Steam where they do not specify when the free offer will end. This celebrates the 20th anniversary of Epic's first-person shooter, which was initially released on this day in 1998. Since that officially qualifies as "a while," here's a refresher on the game and the gold edition:

Your prison ship has crash-landed on the fastest, sleekest, most dangerous 3D world ever created. Look around, crystal clear water shimmers, shadows dance and shift, alien architecture fades into the horizon. Discover the secret of this mysterious planet and find out what caused a peaceful race to be enslaved by vicious merciless aggressors.

• Over 47 eye-popping single player missions.
• 20 multiplayer levels with 5 different game types.
• Ruthlessly intelligent enemies, each with unique personalities.
• An arsenal of over 13 deadly weapons...all guaranteed giblet action.
• Includes all of the latest Unreal enhancements and technical improvements.
• Special graphical and performance enhancements for the latest 3D cards.
• Includes the original Unreal game and its expansion - Return to Na Pali
• Use a wide variety of weapons with many fire modes, some of them upgradeable
• Great gameplay, superb level design and an interesting story