[Zeldor]

Huh, I forgot to release a fixed version with 3 wrong terrain types and 2 wrong neighbours [1 missing, 1 not present]. And for 12 players you need either Cave Maze or Gold Rush version. With Team Arena some valleys can be empty and some can have 2 players.

Let me fix it fast and upload it on llamaserver.

P.S. I'd suggest difficult research for just 12 players on it.

Edit: Added 1.3 of both Cave Maze and Gold Rush.