ModsFinder

Lawrence's Ambient Fireflies

by Lawrence360

Lawrence's Ambient Fireflies is a world generation datapack that places fireflies as ambient particles in swamp and mangrove swamp biomes.

FabricForgeNeoForgeQuiltServer required, client optionalMIT License1.21.5 – 26.2

What it does

Installed in a world's datapacks folder, the pack adds firefly particles to swamp and mangrove swamp biomes, with no new items or blocks. Because it is a datapack, it works on Fabric, Forge, NeoForge and Quilt alike, and server owners only need to place it in the world. It is server required, and clients may add it as well. The author notes it should combine with most other datapacks, but it does not directly change swamps and mangrove swamps in a way other mods can rely on. Builds exist for 26.2, released under the MIT License, and are not open source.

Key features

  1. Swamp ambient fireflies

    Fireflies appear as ambient particles in swamp biomes, adding life to marshland at dusk.

  2. Mangrove swamp coverage

    The same firefly particles also appear in mangrove swamp biomes, so both swamp types are covered.

  3. Lightweight datapack

    The pack is small and adds no items, blocks or mod code, so it installs by copying it into the world.

Compatibility

Latest build for each game version and loader.

26.x4 of 4 versions with builds
26.21.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
26.1.21.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
26.1.11.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
26.11.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.x7 of 7 versions with builds
1.21.111.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.101.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.91.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.81.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.71.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.61.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
1.21.51.2.0+mod1.2.0+mod1.2.0+mod1.2.0+mod
ReleaseBetaAlphaNot available

This mod also publishes snapshot builds. Snapshots are not shown in the matrix.

Questions

Does Lawrence's Ambient Fireflies need a mod loader?

No. It is a datapack, so it is placed in a world's datapacks folder and works without Fabric, Forge, NeoForge or Quilt installed on the server.

Which builds of the pack are available?

Builds exist for 1.21.5 – 1.21.11 and for 26.1, 26.1.1, 26.1.2 and 26.2. The latest file is 1.2.0 for 26.2, released on 2026-06-27.

In the catalog

Lawrence's Ambient Fireflies is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 13,894 mods support Minecraft 26.2.

Similar mods

What the author says

A small and very lightweight pack that adds fireflies as ambient particles to the Swamp and Mangrove biomes. It'll work with most other datapacks? It for sure won't work with any other mods/datapacks that directly change swamps/mangrove swamps directly so just keep that in mind.
Lawrence360, on the Modrinth page

Official listing

Owner
Lawrence360
Published
2025-07-16
Updated on Modrinth
2026-06-27
Facts verified
2026-10-15

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