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STRATUM ZERO

Start from zero

A turn-based RPG for Android. Open geodes, fuse Gemkin and take on four bosses.

Android · Closed beta on Google Play

Late to the party?

If you got into summoning games late, the veterans feel out of reach. STRATUM ZERO is built so they aren't: the edge of those who have played longer, or paid more, has a limit.

  • 20 Gemkin species
  • 132 fusions
  • 4 bosses
  • 13 chapters

The game

A 5-star geode opening in the Geodeon

Open geodes in the Geodeon

Each geode bursts open in lightning and light to reveal your new Gemkin, from 1 to 5 stars. One at a time or ten at a time, with the odds shown before you open it.

A fresh fusion in The Amalgamator

Fuse two Gemkin into one

In The Amalgamator you merge two different species into a new creature, and the fusion can't be undone. 132 fusions, each with its own name, body and skills.

A five versus five battle

Turn-based battles, 5 vs 5

Whoever fills their speed bar first acts first. Earth, Water, Air and Fire beat each other in a circle. Play by hand or on auto, at ×1, ×2 or ×3.

The Runetron rune screen

Runes in the Runetron

Six runes per Gemkin, 16 sets and upgrades up to +12. Compare before you swap and see how many pieces each set still needs.

A Gemkin gains a star in the Ascension Spire

Raise stars in the Ascension Spire

Use spare Gemkin to raise another up to 5 stars. If they are the same species, its skills level up too.

Fighting Kilnback, the Fire dungeon boss

Four bosses, each with a trick

Break Amberhorn's plates, burst the bombs that heal Tidetusk, stop Stormcrest before Skyfall and outlast Kilnback's Eruption. Five threat levels in every dungeon.

Tamsin Reed talks in the Iridia plaza

The story: The Inward Road

The Ravensworth family dopes its Gemkin to grab the best geodes. 13 chapters across three acts and three difficulties. If you only want the fights, turn the dialogues off in Settings.

Fair play

  • Losing a battle never takes away Gemkin, runes or items.
  • No ads.
  • No Gemkin or rune is pay-only: what you get from paid geodes and packs can also be earned by playing, just more slowly.
  • Geode odds, shown before you open or buy.
  • A clear notice before every real-money purchase.
  • Your progress is saved on the server, not just on your phone.

The beta

STRATUM ZERO is in closed beta on Google Play. To join you need an Android phone and a Google account.

  1. Sign up

    Join the testers group with your Google account.

  2. Accept the invite

    Open the Google Play link and tap «Become a tester».

  3. Install and play

    Download it from Google Play like any other app.

Join the beta

The sign-up link will be on this page very soon.

It's a beta: there will be bugs and things will change, and what you tell us decides what gets fixed first. Write to us at [email protected].