Kerbal Space Program!

Damn so many great ones to choose from. I am big fan of Paradox strategy games, kinda in that order: Stellaris, Hearts of iron IV and Europa Universalis IV.

Mindustry, sort of like factorio but open source and free on itch. Although you can also buy it on steam

Savage 2 was so good. The memories 😢

I have a long list :)

Dota2 & CS GO Paradox strategy games (JRepin had listed)

Many non-strategy games published (not developed by) by Paradox Interactive are also providing native Linux games, incl. Cities: Skylines, Surviving Mars, Tyranny

@privsecfoss Starsector has a Linux build, and is an excellent game.

Whenever people ask this, no one ever mentions Teeworlds. It's so cute but has insane depth

Aside from some of the things mentioned here, Death Trash is a pretty neat indev rpg.

I really like Golf With Your Friends.

Mount & Blade Warband is fantastic and I highly recommend it if you haven't played it.

Unrailed! is a neat little coop game to play with friends. If you buy this one on Steam you can use remote play together so only one person in your group needs to buy it.

Ultimate Chicken Horse is fun for a while with friends. Same deal with remote play together with this game.

Both Hotline Miami games are really fun.

0ad, Wesnoth, Endless Sky, Mindustry

The Talos Principle must be mentioned here. It was the first major game to provide Vulkan support, running just incredibly well.

And of course, Minecraft.

FTL

Minecraft (lol)

Rimworld runs Nativ as well to my knowledge.

The games I keep coming back and playing since years are Factorio and Cities Skylines. And Minecraft if you call a Java program native. All because of the vast number of mods that exist. And Dota now and then for playing with friends.

I know you are specifically asking for natives, but with the awesome work Valve has put into proton so many games play well with linux now!