Tomb Raider: Game of the Year Edition is free right now, at least in NA, via Amazon Prime Gaming.  All you need to do is download the GOG client, and boom -- full game is yours.  Haven't played it yet, but if it's anything like Shadow of the Tomb Raider, it's a banger of a solo-player, story-driven game.

Plus, it's everyone's first love and first game waifu...Lara Croft.  Download your copy today!  Just Google "Prime Gaming", you can claim the redeem code from there after you login with your Amazon Prime account :) Happy gaming!