Dungeon Keeper, the 1997 strategy game by Bullfrog Productions and Peter Molyneux, is free on GOG this weekend, the DRM-free digital distribution service announced.
Registered GOG users need only click a link on the site's homepage to receive an email voucher. The Mac and Windows PC versions of the dungeon building game also include the Deeper Dungeons expansion. Those who already own Dungeon Keeper will receive a gift code.
The giveaway is part of a collaboration between GOG and publisher Electronic Arts, a GOG spokesperson told Polygon.
"Any sale we do on GOG is with the permission of the rights-holder," the spokesperson wrote. "So in this case, yes. We did this in partnership with EA."
To celebrate Valentine's Day, GOG is also discounting 30 games that can be played with or against other players until Feb. 16 at 5:59 a.m. ET. Those games include Dungeon Keeper 2 for $1.49, Guacamelee Gold Edition for $3.74, last year's Rise of the Triad remake for $2.99 and Trine 2: Complete Story for $3.99. You can see the full list of discounted games at the Be My Player2 sale's official page.
A mobile reboot of Dungeon Keeper arrived recently as a free-to-play game available through Google Play for Android and the iOS App store. You can read our interview with senior producer Jeff Skalski to learn how developer Mythic Entertainment wanted to approach the reboot. Since its release, the game also received some criticism — including from Molyneux — for some of its mechanics, which can take several hours to complete, as well as for the way in which it handles player feedback.