[Each day, Worlds in Motion will be taking a closer look at individual virtual worlds. We'll start with a nuts-and-bolts overview, then move on to an in-depth tour, to be followed up with a conclusion-- all with the aim of bringing you all the essential info and details on each world in the rapidly-developing virtual landscape.]

Online worlds are usually avatar based, and if they're games, they're normally RPGs. Developer GameForge bucks the trend with Ikariam, a browser based real-time strategy title that is most usually compared to Sid Meier's Civilization series.

Name: Ikariam

Company: GameForge

Established: February 2008

How it Works: Ikariam is browser based and runs in HTML and Javascript. Navigation and gameplay are accomplished via mouse and keyboard input.

Overview: In Ikariam, users create a town on a randomly assigned island. On their island are up to 15 other players, plus a sawmill and a unique resource. The aim of the game is for the player to create the largest and most prosperous city by accumulating resources through production, trade or warfare, and developing new technologies and buildings as a result.

Payment Method: Ikariam is free to play, and earns revenue via "Ikariam Plus" a system where players can purchase "ambrosia" which can be spent to receive in-game bonuses.

Key Features:
- A massively multiplayer real-time strategy title
- "Always on" - players' cities are costantly working, even when they're not logged in
- Players can not only fight with each other, but perform diplomacy, forming alliances and trade agreements

Useful Links:
Ikariam Board - Official Forum
Wikariam - Unofficial Wiki
Ikariam Tip - Unofficial tips site