For dungeons

Being able to name my dungeon.

Placeable tomb and grave as deco.

Add hole as dungeon piece or corridor or ground that break as you walk in. This could be achievied by just adding a black circular texture with a gradient transparency on the border to make it look like a hole. If people fall down and there is no room under, they fall for a couple second and get back to entrance. If they fall and there is a room then the adventure continue!

1x1 stone dungeon prison cell with door, some with secret wall

Add more secret wall in general, some as corridor!