Zorb.io offers the well-known concept of eating orbs in order to grow bigger, but does so in a completely different way by adding an additional dimension of freedom. Players don't walk on a flat surface but can soar in all directions freely. The key aim of the game is to be the biggest sphere in the arena and climb the daily leaderboard.

The most noticeable thing about Zorb.io is the possibility to move not only forward or backwards but also to the sides and even upwards and downwards. It makes all battles more unpredictable.
The growing process starts from gathering floating colored orbs that appear in space. The more orbs you get, the bigger your sphere becomes.
One of the most unusual abilities a player possesses in this game is called Drain. A smaller sphere can simply drain the bigger one while being close to it. However, this method is also dangerous because a small player can easily become food for the opponent.
Enemies that are dangerous to you are outlined in red color, whereas those that can be eaten by you are outlined in green color. Use these cues to take quick action when necessary in a hectic game.
Speed Boost helps you in chasing an escaping target or avoiding large opponents; however, it uses up your mass while in effect. Hence, short bursts are more effective than continuous use of speed.
Always anticipate the movement of your opponents rather than following their movement in a straight line. Whenever you are under threat, circle a larger player.
Move the mouse to steer your sphere.
Left Mouse Button or W: Activate Speed Boost.
Right Mouse Button or S: Stop and hold position.