Yes so the builder was actually only supposed to build tiles adjacent to themselves, not anywhere on the screen. However unfortunately none of us use godot as a primary development engine (prior to this jam). Also the game's challenge and cooperation may have been able to be fleshed out more if we got more level designing done. Anyway, long-story-short we basically spent all our time creating the block systems, and we decided a little too late that we needed to scope down for the jam. So yeah, this version isn't super great, but it does work which is a decent achievement. I'm still working on this currently s a side-project, so I will definitely check out that tool you linked. Thanks for giving it a play and sorry about all the missing/incomplete features.