And, of course, there's the one novel where a bunch of mechwarriors fall into a wormhole and end up on a planet of intelligent bird-people which... hasn't officially been deemed non-canonical, but has been put in the 'We will never, ever, ever reference this again' category.There are a number of bits of Battletech that have been broken off over the years:
- The Sword and The Dagger was written first and there are some details in it that are not really the same as these days.
- The Saban cartoon is now officially an in-universe propoganda cartoon, which vaguely gives some hints of what happened.
- The last chapter of Surrender Your Dreams, set decades into the future, has been disowned after the future was rewritten.
- The BattleTechnology magazine used to be considered canon but now isn't.
- The various computer games have varying degrees of attachment to the core universe of the board game.