KH Thirst Bar

Name: KH Thirst Bar
Author: JGFox

KH Thirst Bar adds a thirst gauge and a temperature gauge that appear in the actionbar above the armor row, and it runs on the server.

FabricForgeNeoForgeQuiltLiteLoaderServer required, client optionalAll rights reserved1.21.8

What it does

Thirst and temperature are tracked by the server and shown to each player in the actionbar, placed close above the armor bubbles. Effects tied to walking, running, jumping, swimming, attacking, shade, weather and elevation change the player's values, so the survival loop depends on keeping water and temperature in range. The difficulty of this pressure can be adjusted to suit the world.

The mod is a datapack-style system that works in single-player and multiplayer worlds and uses vanilla mechanics as its base. Players need nothing installed to join a server that runs it, and the mod can also run on Paper, Spigot, Bukkit and Purpur. Geyser is supported for Bedrock players. The full set of files is published for Fabric, Forge, NeoForge, Quilt and LiteLoader, with the 1.61 build covering 1.21.8 only.

Key features

Thirst actionbar gauge
A thirst gauge appears in the actionbar just above the armor bubbles, so the value is visible during normal play.
Temperature gauge
A second gauge in the same actionbar tracks temperature, which shifts with shade, weather and elevation.
Activity-based effects
Walking, running, jumping, swimming and attacking each change the thirst and temperature values to a different degree.
Adjustable difficulty
The strength of the thirst and temperature pressure can be tuned, which lets a server set how demanding survival feels.
Vanilla-based mechanics
The system is built on the game's own mechanics, so it sits alongside existing food and healing systems.

Gallery

2 more screenshots on Modrinth

Compatibility

Latest build for each game version and loader.

1.21.81.611.611.611.611.61

ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Who it’s for: Server owners who want environmental pressure in survival worlds, and survival players who prefer routine resource management.

How it compares

Full comparison

Vanilla Thirst Bar is a Fabric-only, server-side mod for 1.21.11, under All rights reserved. Hydration is a Fabric mod for 1.21.4 that both server and clients need, licensed under Creative Commons Attribution 4.0. Yet Another Thirst runs on Fabric, Forge and NeoForge for 1.20.1 – 1.21.1, is open source under the MIT License, and needs both sides. KH Thirst Bar works on Fabric, Forge, NeoForge, Quilt and LiteLoader for 1.21.8 only, and players do not install it.

Mod	Loaders	Game versions	Environment	Updated
KH Thirst Bar	Fabric, Forge, NeoForge, Quilt and LiteLoader	1.21.8	Server required, client optional	2025-09-16
Vanilla Thirst Bar	Fabric	1.21.11	Server-side only	2026-01-20
Hydration	Fabric	1.21.4	Client and server	2025-05-29
Yet Another Thirst	Fabric, Forge and NeoForge	1.20.1 – 1.21.1	Client and server	2026-08-04

Questions

Do players need to install KH Thirst Bar?

No. Only the server needs the mod; players can join a server that runs it without installing anything, though they may add it if they wish.

Which loaders does KH Thirst Bar support?

Files are published for Fabric, Forge, NeoForge, Quilt and LiteLoader, all for 1.21.8, and the mod can also run on Paper, Spigot, Bukkit, Purpur and as a data pack.