Lost Features
by KaboomRoads
Lost Features gives Minecraft Java Edition 1.19.4 – 1.20.1 a set of additions that the base game never shipped, grouped under the world generation category.
What it does
The mod adds features that the author describes as supposed to be in the game but were left out. Among them are a Mangrove Swamp night spawn, sculk blocks that bite entities when stepped on, a tongue-like effect that pulls players underwater, deep ocean biomes, and Nether Fortresses. Three further additions are a shield that orbits its holder, ice that falls on a target from above, and a special cow that bees are drawn to.
Fabric API is required on Fabric and must be installed alongside the mod. The mod is licensed under the MIT License and is open source; its source code and issue tracker are publicly linked. It is published for Fabric and Forge across three release versions, 1.19.4, 1.20 and 1.20.1, with 0.7.3 as the latest file for 1.20.1 on the beta channel. Because it runs on client and server, both the server and every player need it.
Key features
Mangrove Swamp night spawn
A night-time spawn is added to the Mangrove Swamp biome, changing what appears there after dark.
Sculk biting blocks
Sculk blocks bite entities that step on them, adding a hazard to areas that contain the block.
Underwater pull
A tongue-like effect pulls players down into the water, and deep ocean biomes are generated as additional terrain.
Orbiting shields and falling ice
Four shields orbit a holder and reduce incoming damage the more shields are active, while falling ice can be summoned above a target.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Extending a survival world
Players who have finished the vanilla biomes can add the deep ocean, Nether Fortress and Mangrove Swamp changes to a new world.
Modded server setups
Server owners add the mod alongside other world generation mods, since both sides need it to run the features.
Who it’s for: Players who want extra biomes and mobs in a world generation pack on Fabric or Forge, and server owners who run a modded survival or adventure server.
How it compares
Mangrove+ is a Forge-only mod for 1.20.1 with the same client and server environment, and it is published under All rights reserved, so it is not open source. Swamp Boat works on Fabric, Forge and NeoForge for 1.19.2 – 1.21.11 and adds a boat for swamp travel, so it covers a different part of the swamp biome.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Lost Features | Fabric and Forge | 1.19.4 – 1.20.1 | Client and server | 2024-12-06 |
| Mangrove+ | Forge | 1.20.1 | Client and server | 2025-06-03 |
| Swamp Boat | Fabric, Forge and NeoForge | 1.19.2 – 1.21.11 | Client and server | 2026-01-19 |
Questions
Does Lost Features need Fabric API?
Does the mod have to be installed on the server?
Which game versions have files?
In the catalog
Lost Features is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from KaboomRoads
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What the author says
Lost Features adds features that were supposed to be in the game, but weren't added. There are versions of this mod for both Forge and Fabric, the Fabric version requires the Fabric API.
Official listing
- Modrinth page
- modrinth.com/mod/lostfeatures
- Owner
- KaboomRoads
- Published
- 2023-04-20
- Updated on Modrinth
- 2024-12-06
- Facts verified
- 2026-10-15