Humble Postmodern Bundle with Catherine Classic $1
Beckett (Also for Mac)
Thomas Was Alone (Also for Mac)
Rusty Lake Hotel (Also for Mac) BTA
The Stanley Parable (Also for Mac and Linux)
Everything (Also for Mac and Linux)
YUMENIKKI -DREAM DIARY- $15
The Stanley Parable and Everything are available as DRM-Free downloads and Steam keys. The rest of the games are only available as Steam keys.
Note: The 1st tier also includes the original Yume Nikki, but I didn't put it up there since it's a free game.