Spore!

No Man's Sky is a procedurally generated open universe game.

This is a simple Agar.io clone written with Socket.IO and HTML5 canvas.

Survive and shoot at others while trying to keep your own tank alive!

Start as a tiny mouse in world of dangerous animals, scavenge and eat to climb the food chain in this multiplayer game of survival and domination.

New online multiplayer game.

Eat other fish to grow larger and become king of the sea in this underwater, multiplayer eat-em-up. Different from agar.io, mitosis and other multiplayer games, EatMe.io lets you choose from 15 fish to play. Use touch or joystick control and swim with ease in the vast ocean filled with treasures - Earn gold coins and become the wealthiest fish in the ocean!

A new generation of .io games! Take a beautiful journey in the sea and be the biggest fish of them all! Floo: Fish Aquatic Adventure is a multiplayer survival game where you have to compete with other players. Swim through colourful corrals, anemones, and seaweed while eating other smaller fish to grow larger. But be careful of other larger fish and deadly sea predator and poisonous urchins.

Vanar.io is a simple real-time multiplayer browser game. Control your spaceship and destroy the others.

Sinuous is an addictive reflex-based game where your objective is to avoid colliding with red dots through quick reaction. Keep an eye our for the assortment of boosts as they are the only thing that will aid you in this epic battle against the evil red dots. The game comes with a soothing soundtrack and tasteful minimalistic design.

Free online multiplayer game.

Warcell is a realtime multiplayer dot eating game in which you play against other players. As you eat foods or other players, you grow. Beware spiky cells, they hurt you if you touch them when you are larger than their mass.

Best alternative to Agar.io.