Tactical turn-based combat on a battlefield you can change.
Spill, freeze, burn, and combine alchemical substances to reshape the battlefield. Blood can become medicine. Fire can harm one creature and heal another. Learn how these systems interact, and find your own ways to survive.
Move into position, throw and teleport your enemies around, synergize spell effects, and use the environment to gain an advantage.
Gather cards, modify your spells, and adapt to each run.
Descend into the Hollow Earth in a roguelite deckbuilder by solo developer reynvert.

Electric damage travels through connected Water, letting one spell hit several enemies.

Freeze Water to stop it conducting your attack back to you.

Ignite Oil for a chain reaction that damages and pushes nearby enemies.

These are just a few examples.
Discover more reactions and ways to use the environment.

Heat harms Organic creatures but heals Golemic ones.

Heal restores Organic health but damages the Damned.

These are just two combinations.
Every health type has its own response to each type of damage and to healing.

Mix Blood with Alkahest, then recover health with the resulting Azoth.

Hurt a Toxic creature with its own bilious blood by converting its Bile into explosive Vitriol.

Convert Phlegm into Verdigris and step into it to gain Shield each turn.

Conduct Psychic damage through Melancholia, an emotional medium, to hurt several enemies with one spell.

These are only a few recipes.
Discover more substances, conversions, and ways to utilize them.

Mankind looked to the stars. The enemy was waiting below.
Beneath Earth's crust lies Inearth: a vast Underworld of ancient beings, alien life, and human settlements. The myths we dismissed as superstition were but distorted accounts of what waited below. Mankind descended with scientists, soldiers, and machinery, determined to understand, settle, and subdue Inearth.
Our expansion reawakened the Worldroot, an ancient organism whose branches connect distant worlds. New Gates open every day, making way for extraterrestrial horrors.
To contain the threat, VEIL abducts ordinary people with an inherited ability to manipulate matter. It gives them basic training and sends them below.
You are Subject Yellow. Your task is to reach a Gate, cross it and sever the Worldroot branch from the other side.
Success will close the Gate behind you and strand you on an alien world.
Mankind will gain a little more time.

- 180+ spell cards in 8 different elemental domains
- 50+ item cards
- 100+ rule-bending gifts
- 80+ NPC types (both enemies and allies)
- 38 interactive substances (both surfaces and clouds)
- 9 damage types and 9 health types
- 160+ interactive effects (such as Bleed or Burn)
- 3 playable characters
Descend. Close the Gate. Do not expect to return.
As above, so below.