Meh, ever since crypto kitties the market has been flooded with these things. Pretty much see a new one every other day now, and I hardly see how they're gonna gain popularity unless they actually have a big platform to begin with. Look at etheremon, when it started it looked like a ponzi, but since then they've removed that, and added a ton of features for people who just want to play.. But even with all these features it hasn't gained much popularity yet.