Simutrans is a bit of an oldie in the open source gaming world, but it's pretty good and it has now found its way onto Steam.
I honestly think RimWorld is fantastic. A visual style inspired by Prison Architect, but you are building a colony on an alien world. The developer is finally bringing it to Steam with a huge update.
Turmoil is a charming looking simulation game that should be coming to Linux after the full release next month. Turmoil offers players a visually charming, tongue-in-cheek take on the simulation genre inspired by the 19th century oil rush in North America.
The Mims Beginning is a very promising strategy god-like game that has supported Linux for quite some time. It's really pleasing to see it have a final release.
While I can never really get into Football Manager games, Motorsport Manager is certainly something I could get into! Would love to take control of an F1 team.
Kitten Rampage seems like a game that is directly copying Goat Simulator, but with a Kitten instead of Goat. If that's your thing it's now on Linux.
I love Tycoon styled games and Blueprint Tycoon is a weird entry. I mean that in a nice way, as it's great to see some innovation.
Recently the developer of Stardew Valley announced that Chucklefish (developers of Starbound) would handle porting Stardew Valley to Linux & Mac. Chucklefish have now announced they are working with Sickhead Games on the porting process.
Parkitect, the game that has reminded me of my love for Theme Park (the original) is now available in Steam Early Access.
Jack Nicklaus Perfect Golf has just launched with full Linux support and it actually looks pretty good.
Parkitect is one of those indie games that's near the top of my list for what could be the "next big thing". The developers have put out the first alpha of their park simulator and it's coming to Steam on Thursday.
Good news all those waiting on Stardew Valley, as the developer has stated in the latest update post that it will be ported and he's taking help from Starbound creators Chucklefish to do it.
Shallow Space was already a pretty cool space strategy game, but it's going through a bit of an overhaul at the moment to greatly expand it.
Kerbal Space Program 1.1 is a pretty big update, and the name "Turbo Charged" seems quite fitting for such an update.
Endciv looks like an interesting take on town building simulation games, you are tasked with building a town in the wasteland after the fall of society.
Maia promises to be quite an interesting colony builder when it's finished, and I'm finally starting to see it come together with the brand new 0.55 Pressure Drop release.
Good news for sandbox village building fans, as Gnomoria now has a DRM free release on GOG. I know a few people who would be happy about this!
Transport Fever has been announced from the same developers as Train Fever. This time you will have access to trains, aircrafts, ships, buses, trams and trucks.
I really liked Retro-Pixel Castles when I played it initially last year, and after trying it again now it has had some major updates I have some more thoughts on it.
You can now expand your trucking simulators with community create mods in both Euro Truck Simulator 2 & American Truck Simulator.