I'm vouching for Frontier as well, as well as "Carbon & Silicon" [0] from Mathieu Bablet. All of his work is gorgeous, I love his art.

If you liked Frontier's theme and are into video games I recommend you check out "Citizen Sleeper" [1] illustrated by Guillaume Singelin as well.

It's a 7 hour narrative text-based adventure that really hooked me one week-end. Your choices depend on how you "spend" your dice, dice that are cast at the beginning of every single day on the station so you get to pre-plan your actions somewhat.

Gameplay wise it's mostly reading, but I liked exploring the station they created.

[0] https://www.magnetic-press.com/carbon-and-silicon/

[1] https://store.steampowered.com/app/1578650/Citizen_Sleeper/