Look, don't touch

Software company is suing modders.

“If they’d offered a competing video game with Tecmo’s code in it, it’s a legal issue. But here, they have simply offered a way for legitimate game owners to modify how the game looks on their screen. Its like a home customization kit. It’s not competing in any way with Tecmo’s product. In fact, you have to own Tecmo’s product to use this stuff.”