Humble have an additional bundle! The Humble Day of the Devs Bundle 2019 just lately went reside with a modest choice of games and some excellent picks have Linux assistance also.
In the $1+ tier you get The Haunted Island, a Frog Detective Game and ART SQOOL while neither offer you up Linux assistance sadly.
When you spend far more than the typical you get Flipping Death and Battle Chef Brigade, the latter of which does in fact have Linux assistance it really is just not advertised as such on Steam.
Lastly in the leading tier each games do have Linux assistance with Minit (which is wonderful!) and ToeJam & Earl: Back in the Groove. You also get a Day of the Devs VIP Ticket, if you take place to reside close to San Francisco in the US enabling you to get into the occasion early and skip any line to get in.
Although it really is sad it really is not a bundle complete of Linux games paying $9 for Minit, ToeJam & Earl: Back in the Groove and Battle Chef Brigade is a fairly excellent deal.
See the complete bundle right here if you are interested in any of these.