Hey there Tom! So I actually had two in the works but still trying to figure out how to employ either but both are loosely based on exploration.
The first takes place in a desert infested with arcane sand and magical bizarreness while the players are tasked with finding various artifacts amongst it's many ruins while avoiding magically mutated behemoths and sky riding bandits.
The second was my attempt at coming up with a ttrpg version of the game Deep Rock Galactic...but then they made a ttrpg of Deep Rock Galactic :/
Basically you'd play a bunch of dwarves exploring a massive crystal infused meteor that crashed on the planet to mine it's resources while fighting off the alien life within, while employing some downtime mechanics like building trust between co-workers.