Credit to: /u/evensteven95
Games not as popular as DoorKickers though.
Change the USD Default Price to anything you wish to pay, must be minimum USD $0.01.
Mad Dojo Steam
A-Gents Steam
Showing Tonight: Mindhunters Incident Steam
Dale Hardshovel HD [Steam](http://store.steampowered.com/app/370170/Dale_Hardshovel_HD/
The Deed Steam (Credit to /u/Laptidop)
CAT Interstellar (Early Access) Steam (Credit to /u/Coronatum)
Space Pilgrim Episode I: Alpha Centauri Steam (Credit to /u/SirLeinad4)
Also, purchasable direct from developer.
I believe they said it was USD 0.20 minimum if paying by card over on reddit.