Spring's Eco Mod
Spring's Eco Mod adds more than nine biomes with vanilla-style terrain, geodes and dungeons, and most of them bring their own trees and wood types for NeoForge on 1.21.1.
What it does
Spring's Eco Mod by Spring_Gaming is a NeoForge world generation mod for 1.21.1 that adds new biomes to the overworld, along with geodes, dungeons and structures spread across them. Its stated aim is to extend vanilla biomes with more content and a deeper progression path, rather than breaking away from the vanilla feel. Some biomes are described as still incomplete, and they remain reachable in single-biome world generation.
Most of the new biomes have their own tree species and wood. The Temperate Forest is a calm area loosely based on parts of Europe, with Tilia trees whose limes can grow after waiting long enough. The Rainforest is a messy, aggressive biome with Eucalyptus and Tangarana trees, whose nests house fire ants. The Redwood Forest has towering Redwood trees and abandoned huts. Fungal biomes add Cotton and Ancient Shroom trees, glowing mushrooms and mushroom caves. The Mahogany Rainforest is calmer and sparser, and the End Woodlands adds an Entropic Tree.
The mod is installed on the server and on every player's client, so both sides need it. Its optional companion is Better Combat. Spring's Eco Mod is released under the MIT License and is not open source. Files are published for NeoForge only, currently 1.2.0 for 1.21.1, updated 2026-04-23, first released 2025-12-01.
Key features
Nine-plus new biomes
Adds more than nine biomes, including forests, rainforests, fungal fields and caverns, and an End woodland.
Biome-specific trees and wood
Most new biomes bring their own tree species, such as Tilia, Eucalyptus, Redwood, Cotton and Mahogany trees.
Geodes and dungeons
New structures include geodes, dungeons and abandoned huts placed inside the new biomes.
Fungal caverns
Mushroom caves with shroomstone walls and minecelium floors, where vines can be grown and smelted into food.
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.
Optional 1
Use cases
Who it’s for: Players who want more biomes, tree types and dungeons in a NeoForge world, and server owners who want to add vanilla-style content to a shared world.
How it compares
The Star Forest is a NeoForge mod for 1.21.4 under All rights reserved, not open source, and runs on client and server. New Big Trees is a NeoForge mod for 1.21.1 under the CC0 1.0 Universal license, not open source, that runs on the server and is optional on the client. Woods+ covers 1.21.4 – 1.21.8 on NeoForge and is also not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Spring's Eco Mod | NeoForge | 1.21.1 | Client and server | 2026-04-23 |
| The Star Forest | NeoForge | 1.21.4 | Client and server | 2025-10-27 |
| New Big Trees | NeoForge | 1.21.1 | Server required, client optional | 2026-04-15 |
| Woods+ | NeoForge | 1.21.4 – 1.21.8 | Client and server | 2025-11-29 |
Questions
Does Spring's Eco Mod need Better Combat?
Which loader does Spring's Eco Mod use?
Do all players need to install Spring's Eco Mod?
In the catalog
Spring's Eco Mod is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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What the author says
Spring's Eco Mod aims to add more vanilla feeling biomes, geodes, dungeons, and progression changes(however it does break free from the vanilla+ ties the deeper you dive). With 9+* Brand new biomes most of which having unique trees with new wood sets your plate should hopefully be filled. *some biomes are incomeplete…
Official listing
- Modrinth page
- modrinth.com/mod/springs-eco-mod
- Owner
- Spring_Gaming
- Published
- 2025-12-01
- Updated on Modrinth
- 2026-04-23
- Facts verified
- 2026-10-15