Promethetan Studios
Copper lanterns illuminate a flooded stone vault and an emerald doorway.

A dark fantasy idle RPG

First Descent:
Idle Abyss

Lead doomed parties through a living dungeon. Spend what survives. Seal the Charter. Return changed.

Join the free Android testSee the game
Discover the descent

The descent is automatic. The decisions are yours.

Every expedition leaves a mark.

First Descent turns the tension of a classic dungeon expedition into an idle loop built around intervention, loss, and permanent recovery.

01

Command the descent

Set the order, answer dungeon incidents, prepare for stair guardians, and recall before the maze takes the whole company.

02

Make gold matter

Repair the party, fund town projects, cleanse relics, and hire one-run retainers that change the shape of each expedition.

03

Begin again, stronger

Seal the Charter for New Game+, then reincarnate into Soul Doctrines that permanently reshape the opening floors.

Dungeon expedition view showing the active party and descent controls.
Push deeper, or bring them home.
Town view showing upgrades, services, and gold-spending choices.
Turn survival into the next advantage.

Beneath the town

The Lantern Vault

Cinematic environment art, not gameplay footage.

Android closed testing

Help shape the next descent.

Become a tester

Free to play during this closed test. Bring an Android phone and tell us what makes you want to take one more expedition.