"Deep beneath the cobblestones of the ancient city, where the water flows slow and the shadows grow long, lies The Rat's Den. It's a sanctuary for those who would prefer to travel unseen and undisturbed, away from the prying eyes of the city guard."
This is an environment I recently finished, in Unreal Engine 5. The idea is that it is some smuggler's den in the tunnel network under a large city, set in ancient China.
Everything was made by me, except the VFX (water dripping, dust motes, moths).