@ikkebinz and me made the first (to our knowledge) playable Tic Tac Toe with only redstone (No Message Blocks, No Plugins, No script only Sand Wool Lava etc.) it is playable in "game" world in unicode lounge server (Updates will be posted in this post).

14 minutes ago, Flamore said:

Spoiler: any form of interaction with it requires the entire level to be reset to it's previous state for wool wires activate only once.

ok and