Think Tanks

Picture a mix of World of Tanks and Battlezone 1998. You've got Think Tanks.

First released in 2003, the game featured a simple enough, arcade plot: You've been kidnapped by aliens, and fight your way out. By the way, you're a disembodied brain in a tank who is implied to be the brain of a soldier.

The main attraction of the game which has subsequently died down was multiplayer. The developer has since been absorbed into Garage Games and the game had a short Play For Free period from 2009 to 2010, before simply vanishing from the radar altogether, not even being available for purchase from the publisher's site (however, it can still be purchased from Shockwave.com for seven American dollars).

Tropes used in Think Tanks include:

Excuse Plot: You get kidnapped by aliens and subsequently make explosions happen. Repeat until you run out of tanks.
Tank Goodness: The other half of the game's title. You can have the typical Light/Medium/Heavy tank choices as per a normal tank game, and you can unlock the UFO which is lighter than the regular light tank.
Game Mod: At one point, entire sites were devoted just to skins for the game, but now the majority of such skins are hosted off of Planet ThinkTanks
More Dakka: Sported by the Light Tank, which actually looks like more like a Gatling Gun on treads than an actual tank.