http://us.battle.net/sc2/en/blog/21173629/starcraft-ii-going-free-to-play-explained-11-3-2017
Starting November 14, you’ll have free access to the original Wings of Liberty single-player campaign and every Co-op Commander, and will be able to unlock access to StarCraft II’s competitive multiplayer content for free
https://www.humblebundle.com/jumbo-bundle-10
Pay what you want tier
Grey Goo Definitive Edition
Epistory - Typing Chronicles
Oddworld New ‘n’ Tasty
Beat the average tier ($5.57 as of this topic creation)
Prototype 2
Kingdom: New Lands
How to Survive 2
More coming
Pay $10 or more
Wasteland 2 Directors Cut