Agar.io is a free gaming app that brings the web game Agar.io into a mobile format. It is optimized for Android.

You can play Agar.io with thousands of players worldwide and compete to become the biggest cell in the game.

The object of the game is to eat smaller players until you're the biggest player in the game. But other larger players will be trying to eat you even as you go after the smaller players. It's a heightened, fun simulation of the food chain with a fast paced game play approach.

New controls have been developed specifically to accommodate touch screens. Make sure you're connected to the web for online play. Then engage in some feisty free-for-all action and use dodging, splitting, and shrinking tactics to catch and avoid other players. There are a variety of secret special skins that can be unlocked through achievements and in-depth game play.

Right now, the Agar.io app is still in beta. You can apply to be a beta tester to help the developers refine the gaming process. More than three million users have downloaded and enjoyed the Agar.io app even before it's released to the general public. Agar.io is easy to learn and has an intuitive interface that makes game play simple and fun.