Season 0 of Deadliest Warrior premiered on April 20, 2010.

Season 1 of Deadliest Warrior premiered on April 7, 2009.

This is a list of episodes from the first season of Deadliest Warrior.

Deadliest Warrior premiered on April 7, 2009 at 10 pm ET. Nine one-hour episodes of the show were produced for Season 1. Season 1 was released on DVD and Blu-ray on May 11, 2010.

Season 2 of Deadliest Warrior premiered on April 20, 2010.

This is a list of episodes for season 2 of Deadliest Warrior.

Season 2 was announced by the Team and by Spike, along with a video game. A teaser image posted on Twitter shows a Ballistic Gel torso behind a podium. A teaser video was posted for Deadliest Warrior for the people who signed up for Warrior Den with some of the weapons for season 2. The weapons trailer only showed modern weapons. Season 2 premiered April 20, 2010, at 10 pm ET.

Season 3 of Deadliest Warrior premiered on July 20, 2011.

Shortly after the season 2 finale, season 3 was announced on Spike.com, followed shortly after by a live Aftermath featuring new host Richard "Mack" Machowicz answering fan questions. On October 13 the show announced the start of production for the season. Over the course of several weeks, Spike revealed the Season 3 match ups. The battle simulator now simulates 5,000 battles as opposed to the previous 1,000. The new format is a squad on squad battle of 5 vs. 5. An average of 100 different X-factors are now factored into each simulation, each being rated on a scale from 1 to 100. Season 3 premiered on July 20, 2011 at 10 pm EDT.