While I'm not in full agreement with the EULA either, you seem to be misinterpreting some things (admittedly, legalese makes this easy). You grant BeamNG those rights, not any other users. Regarding other users, all you do is Copy and archive means that they're allowed to store the mod on their computer (as technically and legally, that's making a copy). I'm not sure why they've decided to allow everyone to make derivative. I don't really care, because the license doesn't say they're allowed to make "derivative works", but only "derivate works", which I don't really mind (as I'm pretty sure "derivate works" aren't a thing). Translation: if a BeamNG.drive update deletes your BeamNG.drive mods: your problem. If a BeamNG.drive update deletes your school work: their problem. Essentially, they're telling you that if you violate the agreement, you'll admit it. You won't have anything to do with BeamNG in a court case unless you're the one who fucked up. That's not reverse engineering. Still, this part is made void by the fact that much of the code is licensed under the bCDDL, which effectively renders both licenses void. What this implies depends on where you live. Because otherwise you're not allowed to play the game?