It's a strange day for Stardock when we say this is the second-weirdest lawsuit involving the company that we've seen today, but it's true. UK developer Rebellion (makers of the 2010 Aliens vs. Predator game) has decided to sue developer Stardock (publisher of Sins of a Solar Empire) because of the name of the latest Sins of the Solar Empire expansion, Rebellion. The court documents say that Rebellion (the studio) has a trademark on that word, and accuse Rebellion (the game), of causing customers "to mistakenly believe that the developer of the game Sins of a Solar Empire: Rebellion is in fact plaintiff Rebellion."

The developer of the expansion is actually Ironclad Games. But the lawsuit claims that from the logo and game name to a YouTube description for the game (mentioning "the developers over at 'Rebellion'"), Stardock knowingly profited off of the "Rebellion" trademark.

The litigation asks for Stardock to be enjoined from selling the game any further, to turn over any infringing materials, and for both damages in the case as well as the court and attorney's fees. Presumably, the complaint will next go in front of a Michigan judge, who will then decide on whether or not the issue can move forward.