Endless Spring (STL+)
Endless Spring (STL+) is a Forge and NeoForge world generation mod that adds new biome features to Minecraft 1.21.5 and later.
What it does
The mod extends the Spring Life update of Minecraft 1.21.5 with additional features meant to complement it. Its first update adds changes to forest and birch forest biomes, along with new mobs and plants: brown bears, hummingbirds, butterflies and bushes. Both the server and every player need it, since the environment is client and server. Files are published for Forge and NeoForge across 7 release versions, 1.21.5 – 26.2, and the code is all rights reserved, not open source.
Key features
Forest and birch forest changes
The first update changes forest and birch forest biomes, adding new elements to those landscapes.
New animals and plants
Brown bears, hummingbirds, butterflies and bushes appear in the world as part of the update.
Expansion of Spring Life
The mod builds on the 1.21.5 Spring Life update, adding features the author felt the update left out.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Endless Spring need to be installed on the server?
Which loaders does Endless Spring support?
In the catalog
Endless Spring (STL+) is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 13,894 mods support Minecraft 26.2.
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What the author says
Do you think the 1.21.5 Spring to Life update didn't add enough, Well this mod is for you! In this mod we plan to expand on Minecraft 1.21.5 with features players wanted as well as features that just fit the update
Official listing
- Modrinth page
- modrinth.com/mod/endless-spring-stl-plus
- Owner
- BelgieMinecraft
- Published
- 2025-03-29
- Updated on Modrinth
- 2026-06-20
- Facts verified
- 2026-10-15