Mafia, BioShock, XCOM and more 2K Games are up to 90% off on the GOG Store

The GOG store has started a sale of games published by 2K Games.

With a discount of up to 90%, gamers are offered these

hit series like Mafia, BioShock, XCOM, as well as individual games The Outer Worlds, Spec Ops: The Line, Ancestors: The Humankind Odyssey and others.

The promotion will last until September 26 inclusive.