Terrarium Expanded

Terrain heights come from elevation tiles, land biomes from reduced ecoregion tiles and inland water from global surface-water seasonality data. Ocean temperature tiers draw on bundled sea-surface temperature data. The mod is open source under the MIT License and is published for Fabric and NeoForge, with builds for 1.21.1 and 1.21.11.

The server is required, while the client is optional. Higher zoom levels create a far larger world with finer geographic detail, though they also need more remote tile requests during generation. Retrieved terrain and surface-water files are kept in a local store, and clearing that store only slows later generation until the files are fetched again. Integrations for Biomes O Plenty, Regions Unexplored and Nature's Spirit are included, and datapacks can raise the world's minimum and maximum Y level.