A handful of indies (most of which you have to download now rather than claim on your account), pay-what-you-want on itch.io until 31st May:

• Sky Lab Defender - base defence shooter for Android, Linux, Mac, and Windows
  • Android version seems to request some suspicious permissions to proceed with caution
• Ball Down Hill - simple arcade reaction game for Android, Linux, Mac, and Windows
• Kasperias Arenas - dungeon crawler RPG for Linux, Mac, and Windows
• The Simple Life - survival pond life simulator for Windows