Today I got a letter from com2us (see my last post) where they informed me about copyright infringement, because I use the phrase "Tower Defense" in one of my games.

That is a bit of stupid, because "Tower Defense" is a game genre and therefore should not be trademarked at all. Whatever, I wanted to change the game title nevertheless, so that's not of a bad thing, even when it is a bit of a hassle to rename it everywhere.

Also, I am from europe, so they do not have a trademark here.

I just googled around and found out, that the well known game "Desktop Tower Defense" was released in 2007 (com2us registred their trademark in 2008).

The author of Desktop Tower Defense (see wikipedia) Paul Preece says, that Desktop Tower Defense is generating a yearly turnover with six numbers.

I will contact him, maybe he will slap com2us in their face for being ridicolous.