I just released PSX Motel 3D Kit: 78 modular pieces to build a run-down American roadside motel for a horror game. Every piece comes twice: a detailed version and an authentic PS1 version (low triangle count, 16-colour textures, nearest filtering).
The motel in the screenshots is built only with the kit: rooms with opening doors, a two-storey gallery with stairs, a flat roof with a mansard band, an office, an empty pool with a diving board, a parking lot and the big MOTEL pylon sign (lit variants included). Pieces snap on a 2 m grid, and the download includes the demo motel as a walkable Godot 4 level, plus FBX, GLB, OBJ and Blender files.
Every model is built one by one with Python scripts in Blender. A free sample of 5 pieces is on the page if you want to check the scale and the PS1 look in your engine first. Feedback welcome!