The house is build with modular walls, floors, etc.
Each room is then combined separately at runtime to reduce draw calls.
I’ve also build my own kind of occlusion culling system, so at all times only the room you’re currently in and it’s adjacent rooms are enabled, again to reduce drawcalls, as I found Unity’s occlusion culling too dodgy and far too complex for my needs.
As a huge fan of the Penumbra series and Amnesia, I grabbed this the minute I saw your announcement. First, the atmosphere looks great. Nice eerie lighting and sounds… However, the game starts on a dimly lit trail that seems to have some unfinished terrain and no obvious way forward. I can see what I assume is the “house” in the distance at the end of the trail, but the terrain to get there doesn’t seem to be complete. In fact, I’ve managed to fall into nothingness several times and have been forced to restart.
Maybe I’m just not trying hard enough? If you could just verify that it working as intended, I’ll try harder. Otherwise, maybe it’s broken?