HoloDefense

Forty developers, teams of five, one weekend at the Drei headquarters in Vienna, and a single brief: build something with Tetris on the Microsoft HoloLens. We built a tower defence out of the tetrominoes.

You aim at a spot and say the word — “tower”, “build” and “place” all work — and one drops there, possibly straight across the route of the enemies, which find their way by A*. They spawn at one end and walk to your main tower, and blow it up if they reach it. “Upgrade” and “destroy” are spoken too. All of it is pinned to the room the headset has mapped, so the battlefield is a desk or a corridor of the actual office.

It won the participants’ vote. 🏆