I just imported a lowpoly envoirments pack into my project but when i try to walk on the terrain i fall thru it even when i put a terrain collider on it.
note: i am new to unity and dont understand terrain colliders
Make sure your character have a Rigidbody and a Collider. Also, check if your Terrain Collider is trigger or not. If it is, uncheck the box and it should works. If that does not works, you can try changing the Collider type to something like Mesh Collider.