So I'm working on a dungeon crawler and I was planning on making it a small open-world game. I started testing it but it looks like it's using over half of my GPU and the game world isn't even that big yet and I haven't added anything other than the terrain either. How can I make it use less GPU without deleting any models or reducing the size of the dungeon?
reduce the amount of shadows, collision boxes/meshes etc. Also make sure that your models have smallish vertices, you can reduce these in Blender 3d, which is free - do a YouTube search how to do this.
How do I reduce the collision boxes/meshes without deleting anything and don't I have to redo the whole thing after I reduce the vertices in blender??
sadly yes. so take that into account for future files. but try the first easier steps and see how it goes