MITHRIL
The world remembers
Mine. Build. Survive.
A world shaped by time. Changed by you.
The world remembers
Mine. Build. Survive.
A world shaped by time. Changed by you.
See Dormancy in action. Watch a million years of geology unfold in your browser.
Every descent is different. Explore cave systems shaped by geological forces — no two expeditions are the same.
From common basalt to mythical mithril. Each material has real physical properties that affect how you mine, what you craft, and how stable your tunnels stay.
Enter dormancy and let a million years of geology reshape the world around you. New minerals form, caves transform, and the mountain you wake up to isn't the one you fell asleep in.
Dig by hand. Then build machines that dig for you. Design pipelines that extract, process, and deliver while you push deeper.
The creatures evolve with the world. Fallen enemies are claimed by geology during dormancy — silicified, opalised, turned to mineral. Those that survive come back stronger, and they've learned since last time.
Every block bears weight. Dig recklessly and the mountain reminds you who's in charge. Engineer your tunnels or lose them.
Mine tunnels. Manipulate lava. Then trigger deep time and watch the earth reshape itself around what you built.
Before
After
Drag to reveal a million years of change.
The world isn't the only thing that remembers.
Everything down here is studying you back. Trigger Dormancy and deep time claims the fallen: silicified, opalised, set into mineral and stone. What endures doesn't return the same. It returns having learned. Descend into the same cavern twice and it will have changed its mind about how to stop you.
Everything's more fun with someone else holding the torch. Early co-op gameplay.
Powered by a custom Rust voxel engine driving Unreal Engine 5.
Mithril's world runs on a bespoke voxel engine written in Rust—handling geology simulation, structural physics, and procedural generation at speeds that let UE5 focus on what it does best: making it all look incredible.
Mithril is being built in the open by a solo dev. Sign up to get first access to the beta, shape the world, and be first into the deep.