A free strategy game for Android that works offline

Star Cluster Conquest is a single-player real-time strategy game for Android phones. It is free, it needs no account, and a full match runs on the device with no connection.

Updated 2026-10-28

What you get on Android

• Free to download and play. The game shows ads and offers optional purchases. See below for exactly what those are.
• Offline. Campaign levels and skirmish matches run entirely on your phone.
• No account. There is no login, and the game does not ask for your name, email, phone number or location.
• One-finger controls. Drag from star to star to send fleets.
• 7 languages. Portuguese, English, Spanish, German, French, Italian and Japanese.

How ads and purchases work

We would rather say this plainly than make you hunt for it.

• The free version shows ads (Google AdMob). You choose on first launch whether ads can be personalized, and you can decline.
• Ads never interrupt a match that is in progress.
• You can watch a rewarded ad for free Credits in the shop, or to double the Credits from a result.
• Optional purchases are Credit packs, premium factions and an option to remove ads.
• The game is single-player, so purchased advantages only ever apply against the AI.

The full details are in the game's privacy policy and terms.

What you can play

• Campaign. 5 guided tutorial levels and 25 more of increasing difficulty. Each level introduces something new, and you earn 1 to 3 stars depending on your time. See the campaign guide.
• Skirmish. Build your own match: map size, number of stars, terrain, and 1 to 5 opponents, each with its own faction and difficulty. See game modes.
• Arena. Ranked duels against AI rivals, from Bronze to Master.
• Progress. Wins earn Credits, which unlock and upgrade faction abilities and buy boosts.

Is it a good fit for your phone

Matches are short and the visuals are simple: circles, points of light and one color per player on a dark background. If you want a game for a commute or a break, that is what it is built for. If you want a deep economy, base building or online ranked play, it is not that game. We would rather you know before you download.

Get it

Star Cluster Conquest on Google Play. On iPhone, get it on the App Store.

If anything runs badly on your device, tell us the phone model and Android version on the feedback page. That is the fastest way for us to fix it. New to the game? Start with how to play.