Zeno Clash

Steam | Xbox 360

Genre: first person fighting
Playtime: 4-6 hours

Bizarre is the perfect world to describe this game. Fistfight weird guys, find out what's going on with Father-Mother, adventure across the strange lands of Zenozoik.

There's also Zeno Clash 2 for even more good weirdness, and Clash: Artifacts of Chaos that I haven't played yet.

Sable

Steam | GOG | PS4 | Xbox One

Genre: open world adventure, puzzle
Playtime: 7-14 hours

Chill desert exploration game. You just set out for your Gliding - a rite of passage where you explore the world and try as many things you can, so you can decide what your adult job will be. You can upgrade your hoverbike, collect masks, explore spaceship ruins, meet people or just chill with the bugs.

Kenshi

Steam | GOG

Genre: open world sandbox RPG
Playtime: until your character dies

Stressful desert exploration game. Grow your squad, don't starve, don't get killed, don't get eaten, loot some corpses, escape slavers. Or become one of them, your choice of how you decide to live in this unforgiving wasteland.

The Elder Scrolls III: Morrowind

Steam | GOG | Xbox

Genre: open world RPG
Playtime: 30+ hours for the main story

Open world game set in (part of) the homeland of the dunmer - proud but xenophobic people living on an isolated volcanic isle of Vvardenfell. Weather forecast: ash with a chance of blightstorms. Excellent worldbuilding, excellent art design, actually great main story, later TES games have absolutely nothing on this one. You want bug? We have bug. We wear bug. We drive bug. We eat bug. We live in bug. Bug.

Synergy

Steam | GOG

Genre: city builder
Playtime: easily 5+ hours per map

Survival oriented city builder with a lovely art style. You are a small colony on a strange desert planet, and you need to manage the temperature along the other things if you want to survive. Very sustainability focused, knowing how to use plants and environment around you respectfully is the key. The flora gives you everything - food, water, building materials and shade. Unless you mindlessly rip it all out.

Currently in early access, unless I forgot to update this.