TankWar Online is a Scorched Earth -style cannons game developed by Jani Hartikainen. It is completely written in HTML, CSS and JavaScript, and should work at least in Opera and Firefox.

Originally developed for Opera's Widget World Cup in January 2007, I rewrote this version partially so it would work in Opera 9.6, 10 and Firefox 3. Despite this, some of the features may not work outside Widget-mode.

The game features destroyable terrain, a computer opponent, wind and multiple weapons. The red arrow in the middle displays wind strength and direction, and the small cross you see on your next turn shows where you aimed on your previous turn.

Want to learn more about how the game works? Read about TankWar Online on my blog

The game used to have an online play mode, but the server is no longer functional due to a hard disk crash. Also, the game will not work in Internet Explorer.