If you are a PC gamer, then this is for you. Epic Games online store gives out free copies of PC games every week. The list in the past has included GTA V, Total War: Warhammer, ARK: Survival Evolved, Borderlands 2, Hitman, Mudrunner and Metro Last Night Redux among others.
All you have to do is create a free account on Epic games (link) and you can get your copy of the game by going to online store.
Epic store has been providing free games every week for quite some time now, so keep checking the store every week and get copies of your favorite games to keep.
Thanks for reading.