I've updated 241, its now the oldest co-op puzzle map that still works in 1.12, just in time for the Better Together Update. now you can play it with all your friends.
There is no Learning Curve 2 [3 Player Coop] [Puzzle Map] Minecraft Map
1.16.2] 2-Player Coop Puzzle: The Twist Labs (Remastered) [EN+DE] [Available on Minecraft Realms!] - Maps - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
1.16.2] 2-Player Coop Puzzle: The Twist Labs (Remastered) [EN+DE] [Available on Minecraft Realms!] - Maps - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
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1.12] Two-Player Co-Op Map: The Twist Labs [Puzzle] [Adventure] - Maps - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
The Legend of Zelda: Templars of Hyrule (Ocarina of Time 3 Player Coop Puzzle Map) [BETA TESTERS URGENTLY REQUIRED] - … | Legend of zelda, Ocarina of time, Templars