Mortal Expansion

Death leaves more than memories.

Mortal Expansion brings haunted exploration, spectral creatures, hidden knowledge, and ectoplasm-powered technology to Minecraft. Discover what lingers beyond the grave—and decide whether to cleanse its influence or put it to work.

A world shaped by Haunt

Both players and chunks have their own Haunt level. As Haunt rises, supernatural activity becomes more common: whispers, apparitions, unexpected assistance, and dangerous encounters.

Beneficial and harmful events occur independently. A haunted place can offer valuable opportunities while remaining a dangerous place to call home.

Discover the Secrets of the Dead

Begin by crafting a Book with Rotten Flesh to create the Book of Ectcetera.

Upgrade your book with Bone, Raw Ectoplasm, and Purified Ectoplasm to explore new subjects through a connected research map. Some knowledge must be whispered to you through Spectral Insight, gradually revealing recipes for spectral threads, ghostly armor, and offering altars.

Build a Mortality Research Station to encourage further revelations.

Explore beyond the grave

• Explore Spiritwood Forests, Graveyards, and Cemeteries.

• Discover named Spiritwells and follow spectral footprints toward undiscovered sites.

• Trade with Spirit Villagers and accept unfinished-business quests, receiving rewards when the task is complete.

• Construct Mortal Golems from Bone Blocks, Rotten Flesh, and Wisp o’ Lanterns.

Death can become a journey

Prepare a self-named Grave to gain access to Spirit Journey, an alternative recovery path after death. Travel through a grayscale world as a spirit, return to your body, or recover through a Spiritwell at a Haunt cost.

Prepared naturalized Graves can also become Grave Porting destinations, allowing travel across dimensions at the cost of consumed materials and increased personal Haunt.

Equip yourself for the supernatural

Craft Bloodstone and Spectralite equipment with specialized tool abilities, including tree felling, area excavation, crop growth, and Haunt-powered pickaxe repair.

Discover Ghost Garb and Haint Garb to pass through solid blocks and gain spectral defenses. Haint Garb adds enhanced jumping, while Spectralite Haint armor combines spectral abilities with stronger protection. Passing through walls consumes breath, and drowning and the void remain dangerous.

Turn ectoplasm into industry

Process raw and purified ectoplasm using cauldrons, furnaces, and machines. Generate energy, purify materials, and develop your workshop with:

• Ectoplasmic and Enchantment Generators

• Haunt and Haint Furnaces

• Purification Stations and the Ectchantment Machine

• Ecto Pipes and Ectanks, including higher-capacity purified variants

Choose how haunted your home becomes

Measure local or personal Haunt with an EMF Reader, or upgrade it for precise numerical readings.

Use Holy Salt, Spirit Torches, and Purification Wards to defend your surroundings. Feed offerings to an Altar of Purity to cleanse nearby chunks—or an Altar of Impurity to raise their Haunt.

Hang a Dreamcatcher to intercept supernatural events. Be careful: it can catch helpful hauntings and secret revelations too.

Requirements and development status

Built for Minecraft 1.21.1 with NeoForge. TerraBlender is required. Install matching versions of the mod and its dependencies on multiplayer clients and servers.

Mortal Expansion is under active development. Balance, artwork, and features may change between builds.

Find documentation and report bugs on GitHub.