Frequently asked questions

Yes. The game is free to download and play on iPhone, iPad and Android. Optional in-app purchases sell lives, boosters and Nova Crystals, and optional rewarded ads give free lives and extra moves.

On the App Store for iPhone and iPad, and on Google Play for Android phones and tablets. Search for Stellar Crush Universe, or use the buttons on this site.

Six hundred levels on the main journey, across thirty universes of twenty levels each. Every universe also has an optional five-level detour, which opens once you beat its boss and earn two thirds of its stars.

Match four gems in a line to forge a comet, which clears the whole row or column across your match. Match in an L or T shape for a nova, which blasts a 3x3 area. Match five in a line for a supernova: swap it with any gem to erase every gem of that colour, or swap two supernovas to clear the board.

You hold up to five hearts, and a heart is spent when you start a level. Hearts refill one every thirty minutes, and you can also earn them from daily missions and rewarded ads.

The last level of every universe is a boss. From the Outer Belt on, each boss plays by one rule: meteor rain turns gems to rock every few moves, solar wind reshuffles the board, and time warp gives fewer moves but returns one for every power piece you forge.

The endless mode. You start with twenty moves, and every power piece you forge buys one back. It is free to play, costs no hearts, and keeps your best score.

A small daily puzzle on a 6x6 board. Every player gets the same trial each day, so you can compare scores with friends. The first try each day is free.

On iPhone and iPad, progress syncs through your own iCloud account when you are signed in, so a new device picks up where you left off. On Android, progress is saved on the device.

Yes, the journey plays without a connection. Ads and purchases need one.

Yes. With a screen reader on, every cell of the board is read aloud with its gem and power piece, and swaps are actions you pick from a list, including which swaps make a match. After each move the game reads out your points, moves left and goal.

There is no sign-up and no account. Ads are served by Google AdMob, and on iPhone and iPad the game never asks to track you. Gameplay analytics and crash reports carry only a random install identifier. The privacy policy has the details.