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Acid Water

by HiddenThorn

Acid Water makes water harmful to players and mobs: contact with water, and rain falling on them, applies the wither effect unless a block sits overhead.

NeoForgeClient and serverAll rights reserved1.21.8 – 26.1.2

What it does

Water stops being a safe place. Both standing water, whether lakes, oceans or water placed from a bucket, and rain inflict the wither effect on any player or mob that touches it. A storm caught out in the open can wear a character down quickly, and regeneration potions do little against it while the character is in water.

Players stay protected by standing under a solid block, which blocks rain from reaching them. Mobs that are immune to the wither effect, such as the Wither itself, are unaffected. Animals and pets are not protected by default, so owners should make sure a block sits well above their heads.

Water-based mobs such as fish, guardians and squids are still spawned as in vanilla, while modded mobs are blocked from spawning in water, which the author gives as a performance measure. Acid Water runs on client and server and is published for NeoForge only, for 1.21.8 and 26.1.2, under All rights reserved.

Key features

  1. Wither effect from water

    Standing in lakes, oceans or bucket water applies the wither effect to players and mobs.

  2. Harmful rain

    Rain falling on a player or mob inflicts the wither effect, so open-air storms become a threat.

  3. Shelter from rain

    A solid block above the head keeps a player safe from the effect, while mobs immune to wither stay unaffected.

  4. Limited spawn changes

    Modded mobs are kept out of water, and vanilla water-based mobs still spawn as usual.

Compatibility

Latest build for each game version and loader.

26.1.21.0.1
1.21.81.0.0
ReleaseBetaAlphaNot available

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

Use cases

Survival difficulty

Players who want water and weather to be a real hazard can use the mod to raise the stakes of exploring oceans and rain-soaked biomes.

Pet protection

Owners of animals and pets can build shelter so their companions are not hurt by rain.

Who it’s for: Players looking for harder survival play in which water and weather carry a risk, and server owners who want that rule for their world. Multiplayer support is not confirmed by the author, who tested only single player.

Questions

Does Acid Water need to be installed on the server?

Yes. The server and every player need the mod installed.

Is Acid Water safe to use in multiplayer?

The author supports single player only and guarantees nothing for multiplayer.

How can a player stop taking damage from rain?

Stand under a block placed one block above the head. Mobs immune to the wither effect are not affected.

In the catalog

Acid Water is one of 19,031 Adventure mods on ModsFinder, and one of 8,588 Adventure mods for NeoForge. 15,189 mods support Minecraft 26.1.2.

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What the author says

Water is no longer safe, in fact it's now one of your most dangerous and constant threats in Minecraft. As this mod makes it so both standing water, whether it be in lakes, oceans, or placed by a bucket, and the rain, will inflict the player and any mob with the wither effect. This makes it so getting caught out in a…
HiddenThorn, on the Modrinth page

Official listing

Owner
HiddenThorn
Published
2026-05-24
Updated on Modrinth
2026-08-21
Facts verified
2026-10-15

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