Meatbot Massacre 2005

From the designers' website:

You are one of the few ultra-violent psychos left on the planet. You and the other un-treatable freaks squeeze into the squishy cockpits of bio-engineered war machines to face each other in televised gladiatorial combat. You are a meat jock and this is Meatbot Massacre.

Meatbot Massacre is a tactical game designed by Greg Stolze (Hunter: the Reckoning, Unknown Armies, GODLIKE) with Daniel Solis (PUNK, Gears & Spears) to provide an optimal mix of game speed, ease of use, and tactical complexity. Meatbot Massacre uses an innovative dice mechanic in which your choice of die-type determines your actions. The dice do the talking.

The core mechanic takes only minutes to learn, but the tactics get more intricate as your meatbot rips power-ups from enemies and devours them. In other words, you can make the game as simple or as complex as you want: When you've mastered it at its simplest, you can crank it up without learning new mechanics.

You can download the game for free at: http://www.danielsolis.com/meatbot/