Screenshot 1 of 5. A purple amethyst-style cave with glowing white crystals, stone steps and small pedestals in Infinity Cave.
What Infinity Cave works with.
| Platform | Java Edition |
|---|---|
| Loaders | Fabric, NeoForge |
| Minecraft versions | 1.20.1, 1.20.4, 1.21.11, 26.1.2, 26.2 |
| Environment | Client, Server |
Infinity Cave is a Java mod that lowers the world floor from -64 to -128 and fills the new depth with one interconnected cave system. It runs on Fabric and NeoForge, with older Forge and Quilt builds that have stopped. It is required on the server, and the client side is optional.
Loaders and versions
- Fabric: Minecraft 1.20.1 to 26.2. The newest build needs no dependencies.
- NeoForge: Minecraft 1.20.2 to 26.2. The newest build needs no dependencies.
- Forge: Minecraft 1.20.1 to 1.21.1, builds stopped after September 2024. The newest build needs no dependencies.
- Quilt: Minecraft 1.20.2 to 1.20.4, builds stopped after December 2023. The newest build needs no dependencies.
What changes underground
The cave system adds five new cave biomes, plus additions to the Deep Dark, so six biomes can be explored. Each biome has at least one structure, built with help from Viavir. Regular mobs do not spawn down there. A custom spawning system takes over, and it is much harsher than vanilla. The mod is aimed at the later stages of play and adds roguelike mechanics.
- Mobs come in five tiers, Common to Legendary, with randomised stats and a random offhand item that alters behaviour.
- Higher tiers unlock as you defeat lower ones. Progress is shared across a group playing together.
- Rare tier brings the Magician and the Alchemist. The Bomber appears only at Epic or above.
- Legendaries have their own bossbar and a random element, and they drop special weapons and armour.
- Enchantlets apply enchantments that vanilla does not offer. A guidebook arrives with your first custom mob.
Installation and settings
Drop the mod file for your loader into the mods folder (see how to install mods on Java, or set up Fabric first).
Run /function infinity_cave:settings for a menu that disables mob spawning and tunes difficulty and mob behaviour. Difficulty starts on easy. Use /scoreboard players set [PLAYER] ic.progression [AMOUNT] to set a stage, since Legendaries begin at 1000.
Questions about Infinity Cave.
4 questions
Does Infinity Cave work with Terralith?
Terralith compatibility requires the mod. Infinity Cave is in early beta and probably clashes with many worldgen mods and datapacks that use resource packs, so other combinations may fail. Try any new pairing in a fresh world before you commit a long-running save to it.
Is there an Infinity Cave for Bedrock Edition?
No. Infinity Cave is Java only, and Bedrock cannot load mods. Modrinth hosts Java content, and the listing offers builds for Fabric and NeoForge, plus stopped Forge and Quilt builds, so there is no Bedrock release to install.
How deep does Infinity Cave go?
It lowers the bottom of the world from -64 to -128. The new space holds a connected cave system with five new biomes, plus additions to the Deep Dark, and each biome has at least one structure.
Can I play Infinity Cave with friends?
Yes. The progression system is built around groups, so friends who fight in the caves advance with you. The mod must be installed on the server, while the client side is optional.
