I can imagine it being successfully argued the other way by a persistent prosecutor. But considering all the fair use tests I think a reasonable interpretation

I can imagine it being successfully argued the other way by a persistent prosecutor. But considering all the fair use tests I think a reasonable interpretation is to let it be. Of course US law and judges are anything but reasonable a lot of the time, and if someone is looking to fuck you over there are plenty of ways to do so. I'd wager there are more than one patents being violated by this game (and the original it was cloned from) for instance. The other consideration is that the developer is in India, which unless he's doing things on the scale of Dotcom allows him a "come at me bro" attitude if he felt like it. Fortunately he seems like a decent fellow, so it's a non-profit learning exercise of something with a lot of prior art in terms of gameplay, it's not a complete clone, and I doubt it hurts sales of the original (which he links to). I guess you're in agreement with me otherwise?