This is a paid asset, but now you can download HQ Abandoned School (Modular) Free.
Detail this asset from Unity Store: Original Link
HQ Abandoned School v1.0
“If possible, please buy the package to support the developer”
HQ Abandoned School – it’s a completely modular flexible set of 3D-models, textures, materials and shaders that will let you dive into an atmoshpheric abandoned place of the previous century.
For this moment this pack includes 7 pre-made rooms in the demo scene interior (two classrooms, two toilets, library, gym, lockers room) and corridors.
Without numerous words – just watch the video and look at the screeshots.
– carefully detailed interior and exterior;
– customizable substance materials;
– over 500 objects;
– scripted doors;
– 2 demo scenes with lighting already set up (day and night);
– BONUS: included the lite version of Object Placement Tool;
P.S.: I’ll be very happy if you leave a review!