I am a huge gamer nut, and a big fan of JiG, a casual gamer site with some of the most comprehensive lists of free games in any genre.

While I am mostly only partial to their collection of puzzle and escape-the-room games, I will never turn down the opportunity to snag free swag. They've listed a huge promotion for some free games on Big Fish, and three of their most popular titles, normally a 20$ download apiece, are being offered free for the next two weeks (and they're yours to keep thereafter, so long as you activate them before March)

Check it out here if you're interested.