While searching for other farming sims while covering Cattle and Crops, I ended up coming across Fantasy Farming: Orange Season and it just recently added Linux support.
HyperRogue is a non-Euclidean roguelike that has not only messed with my brain, it also combines a free and paid development model with code that's under the GPL.
Starmancer, a space station sim inspired by Dwarf Fortress currently on Kickstarter will have full Linux support, even during alpha and beta. It looks damn good too!
Epic Car Factory, a sweet new simulation game about being CEO of your very own car company is coming to Linux soon and if you've pre-ordered, you now have access to a beta.
Think you have what it takes to be an entrepreneur and build up a big network of factories, transport lines and build an industrial and financial empire? Take a look at Rise of Industry.
Farm Together is the latest game from Milkstone Studios, a chilled out farming sim where you and friends (even strangers) can work together to build a huge farm.
It's been a while since Can't Drive This gained Linux support, so I finally set aside some time to take a proper look. An amusing idea, where one player races and the other builds the track as you go.
AMD has announced today the worldwide release of their first Ryzen Desktop APUs with Vega graphics, could be an interesting choice for low-cost Linux gaming.