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1 Slot Survival

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1 Slot Survival

By Smiley_53Owner

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Only one usable inventory slot: the first hotbar slot. Every other slot is blocked by barriers. An extreme survival challenge, server-side only.

Mod Loaders
Minecraft
26.3 26.2
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About

Description

1 Slot Survival

What if you had to survive Minecraft with a single inventory slot?

This mod blocks every inventory slot except the first one of your hotbar. Every choice matters: which item do you keep, when do you swap it, what do you leave behind?

How it works

  • The other 35 slots (8 hotbar slots + 27 main inventory slots) are filled with barriers named "SLOT BLOQUÉ".
  • If you put an item into a blocked slot, it is ejected onto the ground. It is never deleted or duplicated.
  • The barriers can't be placed or dropped, and they vanish when you die, so they never end up on the ground.
  • If you hold a barrier in your hand, a reminder appears in the action bar.
  • Optionally, the offhand can be blocked too.
  • Armor slots are left untouched.

Server-side only

The mod runs entirely on the server: on a multiplayer server, your friends don't need to install anything and can join with a vanilla client. It also works in singleplayer.

Commands

Operator permission (level 2) is required.

Command Effect
/slotlock enable Enables the challenge
/slotlock pause Pauses the challenge
/slotlock offhand on / off Blocks or frees the offhand slot
/slotlock status Shows the current state and how many barriers are in your inventory
/slotlock uninstall Removes every barrier before you delete the mod

Exempt a player: /tag <player> add sl_exempt

Settings are saved in config/slot_survival.properties.

Installation

  1. Install Fabric Loader (0.16.0 or newer) for Minecraft 1.21.1.
  2. Install Fabric API.
  3. Put the mod file in your mods folder.

Uninstalling

Run /slotlock uninstall to remove all barriers from inventories, then delete the mod. If you skip this step, the barriers stay in your inventories.

Challenge ideas

  • A speedrun with a single slot.
  • A survival run with friends, one slot each.
  • An Ender Dragon challenge: which single item will you fight it with?