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Two Player Required

Two Player Required

DATA PACK
A co-op-only datapack: play alone and you're stuck in Adventure mode with blindness and a "waiting for other players" message until a second player joins, then you're switched back to Survival. Survival only.
by EenPlopKip2
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46 downloads
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Updated Oct 14, 2026
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Utility
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Two Player Required

A small datapack that turns your world into a co-op-only experience. You simply can't play on your own anymore.

How it works

If you're the only one online, the world basically puts itself on hold. You'll get hit with permanent blindness, you're dropped into Adventure mode so you can't break or place anything, and a red "WAITING FOR OTHER PLAYERS" message sits on your screen.

The moment a second player logs in, it all sorts itself out on its own. The blindness clears, you're put back into Survival, and the message disappears. From there you just play normally.

The whole point is that nobody gets to start until everyone's actually there.

SURVIVAL ONLY

Just so it's clear: THIS ONLY WORKS IN SURVIVAL. It's not built for Creative or Adventure worlds, so don't expect it to behave there.

Made for Minecraft Java 1.21+.

pack.zip
MC 1.21.2-Snapshot, 1.21, 1.21.6-snapshot, 1.21.1-Snapshot, 1.21.8, 1.21.5, 1.21.4, 1.21.5-Snapshot, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.21.4-Snapshot, 1.21.2, 1.21.9-snapshot, 1.21.9
Release 2026-06-26 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.21.5-Snapshot – 1.21.9
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 1.21.9 All data packs

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