Balls Invaders is a game where you control a race of balls that wants to invade the  worlds of other type of balls to steal their resources and artefacts.

As you progress, Your portal will allow you to access more distant worlds, and more dangerous. The inhabitants might be stronger than you think, so you will have to get stronger.

To do so, you will need to defeat the inhabitants to get combat experience and keep an eye open for treasure chests containing powerful artefact or useful items.

The inhabitants of these worlds won't attack you, but they will fight back. Your portal is not really strong and can only keep you in a world for a limited time before pulling you back to your island. You will have to use or equip items to help you with this.

Each world has unique powers on their artefacts, and they also get more powerful.