Building (and grid) for my 3d multiplayer survival game

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:bust_in_silhouette: Asked By SF123

I have been working on a 3D multiplayer survival game, and I want to add building (and a building grid for the pieces to snap to), the only problem is, I have no idea how to do that!

I first tried following this tutorial, which was the only one I could find on this sort of thing:

but it was very weird, and did not work as expected, and it did not show how to make a grid.

I don’t know what to do, so any help is appreciated!

Thanks in advance!