https://www.humblebundle.com/
There are some good games in this bundle!
Antichamber - a first-person puzzle platformer where physics doesn't work right. Some of the puzzles are really challenging, and it'll hurt your brain in the best possible way. I beat it in about 6 hours, but didn't 100% it yet. I highly recommend this.
Dust: An Elysian Tail - a 2-D beat-em-up. I haven't played too far into it yet, but from what I have seen, the combat is really fun, with lots of movement and combos and great controls. The art style is really bright and colorful, supposedly hand-painted.
The Swapper - here's what I said about it previously in some other thread.
I haven't played the others yet, but Giana Sisters has been on my wishlist for a long time, and I've heard very good things about Guacamelee.(SPOILER)Swapper is a cool game. The designers created models out of clay and video captured them for game graphics. It looks really good. It's a creepy kind of game without being full-fledged horror (no jump-scares or anything). The story delves into certain weird pseudo-philosophical areas which is kind of cool for a video game.
The gameplay is fun. Vaguely of reminiscent of a 2-D Portal, though not really. It's mostly a puzzle game, with a few platforming sections.
My main complaint is the game is short. There are a lot of simple puzzles to teach you the game mechanics that you'll likely breeze through, and then some good puzzles, and that's it. A couple puzzles had me stumped for a while, but I still beat the game in 4 hours. I would've loved a few more hours of puzzles. But that probably means I enjoyed the stuff that was there.
You also get the games' soundtracks, and they always add more games to the Bundle later on. Not bad value for $5.