I stumbled across this game in the Google play store a few weeks ago. Have to say it's pretty addicting. Merge Cats, a great name too. You can earn the ethereum based ERC20 token "SOUL" by completing tasks.
Above is some of the gameplay from Android. I just started so I'm not that far along quite yet. Seems pretty expansive though. Here are the developer notes from Google Play:
The game is surprisingly fun. A great time killer. The value of soul has slowly gone up since I started playing a few weeks ago. There's a plethora of information on the website regarding token burns, airdrops and private sales and the white paper is available for download as well. The developers seem a little money hungry, around every corner in the game and on the website they're asking you to upgrade your membership for a fee, etc. No different from any other crypto project in its infancy. However, this seems like it has potential and seems legit, so far. Time will tell. There's definite interest for it in the play store, even though most people probably don't even know what they're earning. Bottom line is the game is pretty fun and it's completely family friendly, reminds me of a spin-off of Dogecoin. Nothing serious, just a bunch of cats flying around a racetrack. No complaints from me. According to the map it looks to be a rather expansive, NeverEnding saga...
There is a list of approved ERC20 wallet on their site that includes Trust Wallet, Metamask and Atomic Wallet. The SOUL token is actively traded on Mercatox and Hotbit. At the time of publishing this post a thousand SOUL equals about 26 cents USD. As shown in the pictures above, when I started the game about 2 weeks ago 1,000 SOUL equaled 22 cents USD.