Environmental concept arts originally crafted for the "Precursor's fortress" and ended up being split into the "Excavation" area as well.
I actually did this 5 years ago ! It took a long time for the devs to finish the game, but the final in-game assets ended up being very close to my original intent and I was very happy to see the final results.
Work done under the supervision of Art Director Chander Lieve and Creative Director Erik Olofsson from Grinding Gear Games.