Agar.io brings massively multiplayer games to the petri dish

Most massively multiplayer online games take place in epic fantasy worlds or the distant future, but one of the latest sensations takes place on a much, much smaller scale. Agar.io pits thousands of players against each other in a web-based petri dish, where each gamer represents a cell. Your only real goal is to grow larger than everyone else by swallowing other cells and dodging your bigger rivals. It sounds simple, but it can get very hectic -- and it's a good abstraction of the fierce survival-of-the-fittest competition that you sometimes see on the microscopic level.

Multi-directional real-time creative collaboration platform based on WebSockets, by Marko Mitranić, Homullus

Agar.io, Agar.io Wiki

Agar.io is a massively multiplayer online action game created by Brazilian developer Matheus Valadares. Players control one or more cells in a map representing a Petri dish., Wow

Senpa.io on Steam

Top 25 best .io games list for mobile phones and tablets

Agar.io [Online Multi-Player Browser Game] - Review

Agar.io - A clever and addictive multiplayer battle

The rise and rise of .io games

Petri Dish - Apps on Google Play

Agar.io is a simple yet addictive game - Dennis Asp English

Senpa.io on Steam

Top 25 best .io games list for mobile phones and tablets

Popular Game Agar.io Comes Free To Roku – Rokuki

Agar.io - Fun Multiplayer Game on the App Store

What makes the .io games (agar.io, slither.io, diep.io) so popular? - Quora