Since I have done a lot of this recently it only seems fair to highlight this, Card City Nights recently released onto Steam and its Linux sales are good.
The developer stated on twitter on the 18th that Linux is currently making up 4% of sales for the game, that's more than a lot of developers have been getting so well done to the developers.
I am one of the 4%.
Card City Nights is an adventure through a city filled with card-nuts and lunatics. Battle for the 8 legendary cards to enter the biggest competition this city has seen yet.
CCN is not a traditional card-trading game. It's an adventure game with lots of funny characters and locations to find.
There are no IAP's in this game! You collect booster packs by simply playing the adventure from start to finish.
CCN also has one of the greatest soundtracks ever created for a game, with an amazing blend of Jazz and Hiphop!