Tic Tac Toe in 3D.

The universe fights back.

Supernovas scorch nearby systems. Black holes rupture spacetime and swallow settlements. Monsters hunt. Pulsars sweep the board with rotating beams. The Great Attractor drags your settlements off their lines. Stellar Nurseries incubate rewards for whoever claims them first.

Ten galactic events: Supernova, Gamma Ray Burst, Solar Flare, Gaia and Nebula on every board, plus Black Holes, Monsters, Pulsars, the Great Attractor and Stellar Nurseries on 4×4×4.

Bring your friends.

Up to three players on one iPhone or iPad.

• 1Solo. You against the AI, on Easy or Hard.
• 2Head to head. Pass the phone to a friend.
• 3Three-way war. Three humans, or two humans and the AI, on the 4×4×4 galaxy.

Pass-and-play is built for the table. The board turns to face whoever is up, everyone picks a seat, side by side or across the table, and everyone picks a color from sixteen.

How it plays.

1. Two boards. Classic 3×3×3, or the bigger 4×4×4 galaxy.
2. The Tesseract. On the 4×4×4 board, whoever completes a 16-system tesseract wins outright, even when it is built from everyone's settlements.
3. Constellations. Arrange your settlements into constellations, like the Big Dipper, Orion's Belt and Cassiopeia, to earn powerful one-time rewards.
4. A dozen power-ups. Encase a system in a Dyson Sphere, jump the turn order, or call in a Graviton Wave.
5. The Big Bang. Gather three Big Bang fragments from dying black holes and wipe the board. Space boils, the screen goes white, and a brand new galaxy shows up.
6. Spin it. Drag to turn the board around its axis. X, Y and Z guides keep you from losing your bearings.
7. Save and resume. Leave mid-game and pick up right where you left off.