If you love free and open source games keep an eye on the 2D space sim Endless Sky, which just got a new Beta release with version 0.10.0 giving some fresh gameplay improvements.
Read the full article here: https://www.gamingonlinux.com/2023/02/free-2d-space-exploration-sim-endless-sky-v0100-adds-new-factions-gets-better-ai