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Head-to-head · Minecraft World Generation Mods

Terralith vs Tellus

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Terralith #1 in Minecraft World Generation Mods 8.9/10 Free plan Free plan✓ 2 of 3 features Visit Terralith
Tellus #7 in Minecraft World Generation Mods 8.2/10 Free plan Free plan✓ 1 of 3 features Visit Tellus

Terralith leads on 1 check, Tellus on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreTerralith · 8.9/10
  • Free planboth
  • Most featuresTerralith · 2 of 3

Terralith scores higher on our rubric for minecraft world generation mods: 8.9 against 8.2 out of 10; our editors rank them #1 and #7.

Terralith offers adds biomes; Tellus doesn't.

Terralith is the better fit for players wanting a broad Overworld overhaul. Tellus is the better fit for players seeking Earth-inspired worlds.

  • Terralith fits best

    Players wanting a broad Overworld overhaul

  • Tellus fits best

    Players seeking Earth-inspired worlds

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Terralith 8.9/10 Visit ↗ Tellus 8.2/10 Visit ↗
At a glance
Editor score 8.9 8.2
Ranking #1 in Minecraft World Generation Mods #7 in Minecraft World Generation Mods
Best for Players wanting a broad Overworld overhaul Players seeking Earth-inspired worlds
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Built for Solo, Small business Solo
Features Terralith 2/3 · Tellus 1/3
Adds biomes ✓ (best) —
Terrain customization ✓ ✓
Dimension generation — —
Specs
Minecraft versions 26.3, 26.2, 26.1.x, 1.21.x, 1.20.x, 1.19.x, 1.18.2 26.2, 26.1.2, 1.21.11, 1.21.1, 1.20.1
Mod loaders Fabric, Forge, NeoForge, Quilt; also available as a datapack Fabric, Forge, NeoForge
World coverage Overworld Overworld
Our review
Pros
  • Adds more than 95 biomes and updates many vanilla biomes
  • Generates canyons, floating islands, deep ocean trenches and custom caves
  • Available as a mod or datapack across multiple Minecraft versions
  • Builds terrain from geographic elevation data and OpenStreetMap features
  • Offers a map picker plus previews and adjustable terrain settings
  • Supports Fabric, Forge and NeoForge, with Distant Horizons and Voxy integration
Cons
  • Focused on the Overworld, not additional-dimension generation
  • Removing it from an existing world is discouraged; start a new world
  • Structure, skyland and terrain-slab configuration is limited to the mod version
  • Requires an internet connection to retrieve geographic data
  • Survival features are incomplete; the project recommends exploration and testing
  • Official server support is not yet available, and worlds should start in singleplayer
Our verdict

Terralith changes Minecraft Java Edition's Overworld generation through a free mod or datapack. It is aimed at players who want a broad change to the landscape rather than a terrain-only adjustment: it adds more than 95 biomes, updates…

Read the review →

Tellus is a free Minecraft Java Edition world-generation mod for players who want to explore landscapes shaped by real-world geography. It uses elevation data to generate Earth-scale terrain, draws roads and buildings from OpenStreetMap,…

Read the review →
  1. TerralithMinecraft World Generation Mods 8.9Free plan
  2. TellusMinecraft World Generation Mods 8.2Free plan

Strengths and trade-offs

  • Terralith — where it wins

    • Adds more than 95 biomes and updates many vanilla biomes
    • Generates canyons, floating islands, deep ocean trenches and custom caves
    • Available as a mod or datapack across multiple Minecraft versions

    Where it doesn't

    • Focused on the Overworld, not additional-dimension generation
    • Removing it from an existing world is discouraged; start a new world
    • Structure, skyland and terrain-slab configuration is limited to the mod version
  • Tellus — where it wins

    • Builds terrain from geographic elevation data and OpenStreetMap features
    • Offers a map picker plus previews and adjustable terrain settings
    • Supports Fabric, Forge and NeoForge, with Distant Horizons and Voxy integration

    Where it doesn't

    • Requires an internet connection to retrieve geographic data
    • Survival features are incomplete; the project recommends exploration and testing
    • Official server support is not yet available, and worlds should start in singleplayer

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update