Fatigue+
by Arctyll
Fatigue+ tracks how long a player has gone without sleeping and applies growing penalties the longer they stay awake in singleplayer worlds.
What it does
Each in-game day without sleep counts toward a sleep deprivation total. As that total rises, the mod applies potion effects that worsen day by day, and custom messages mark each stage of the decline. Death becomes possible starting on Day 7, so a player who never sleeps eventually faces a fatal penalty. Sleeping resets the counter back to zero.
The mod is aimed at players who want survival to feel more demanding and immersive. It only affects singleplayer games, so a world run on a multiplayer server is not changed. Progress is stored in a simple JSON file, which keeps the data readable and simple to reset.
Installation requires Forge for Minecraft 1.8.9, and the only published build is 0.1 for 1.8.9, released on 2025-04-21. The mod runs on the client and the server, so both sides need it. The code is open source under the GNU General Public License v3.0 only, and the source code and issue tracker are public.
Key features
Sleep deprivation tracking
The mod counts the days a player goes without sleeping and keeps that count across play sessions.
Progressive potion debuffs
Potion effects are applied and strengthened as the number of days without sleep increases.
Lethal threshold on Day 7
After enough nights without rest, the penalty can end in the player's death, starting from Day 7.
Reset on sleep
Sleeping in a bed clears the fatigue counter, so the penalty is avoided by resting normally.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Hardcore-style survival
Players who want a stricter survival loop can rely on sleep as a required part of play.
Singleplayer roleplay
Single-player players who prefer a worn, tired character can let the penalties shape their pace.
Who it’s for: Players of Minecraft 1.8.9 with Forge who play singleplayer worlds and want sleep to matter. Server owners should know the mod only affects singleplayer games.
Questions
Does Fatigue+ work on multiplayer servers?
Which Minecraft version does Fatigue+ support?
Does Fatigue+ need to be installed on the server?
In the catalog
Fatigue+ is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 955 mods support Minecraft 1.8.9.
Similar mods
What the author says
Fatigue+ is a lightweight, immersive Minecraft mod that simulates sleep deprivation. Designed for Minecraft 1.8.9 (Forge) and built to work client-side only, this mod tracks how long you’ve stayed awake and progressively makes your experience more difficult.
Official listing
- Modrinth page
- modrinth.com/mod/fatigueplus
- Owner
- Arctyll
- Published
- 2025-04-21
- Updated on Modrinth
- 2025-04-21
- Facts verified
- 2026-10-15