"Mithril" is a first-person mining and automation game set in alien underground caverns. Players must explore procedurally generated caves, extract resources from rock walls, and establish production chains using various devices. The full version plans to support single-player and up to four-player co-op.
Production facilities include crushers, furnaces, conveyor belts, storage units, and mechanical mining equipment. The game simulates different rock layers, ore veins, stalactites, and crystal structures. Players can use lava, water, and hydrothermal activity to alter rocks and generate the minerals they need.
The caves are not static backdrops; every stone bears weight. Mining too quickly or providing insufficient support can trigger unscripted cave-ins. Players need to install supports, plan tunnels, and increase automation to reduce survival pressure.
Alien insectoid creatures lurk underground. Players can engage them in melee combat using mining gloves or fire spikes converted from rock. Enemies analyze the player's attack patterns and base location, making subsequent raids more challenging. The full release will also include a free-building mode with enemies disabled.
The current Steam demo already includes mining, cave-ins, and the "Stasis" feature, which allows players to quickly simulate long-term changes in the cave. However, co-op gameplay and enemy memory mechanics are not yet available. There are currently two conflicting release dates mentioned: December 8th and December 6th. Please refer to the store page for the official date.