Just so everyone knows you can get the app here: https://play.google.com/store/apps/details?id=com.Leo.DarkDawn&hl=en

Is there any special requirements for android devices for best playability?

Hey DarkOne, thanks a ton for posting the link! I'm so tired from the big push to finish this release while handling work stuff that I just kinda plopped it up there with none of the usual accompanying fanfare. For the next episode I'll try to do a proper post with images, more of an explanation, etc. I might make a post outlining the upcoming release plans soon. 

As for requirements, I'm afraid they've crept up a bit as the game has become more complex. Right now its very smooth on a Galaxy S5, and quite playable on something as old as an S3 or the old original Nexus 7, so anyone with a roughly up to date Android should run it well enough. If you're in doubt and want to do a test really quickly, you can grab the game, go to Encounters from the main menu (second option) and fire up the "Stress Test" scenario. That is a large fleet battle that starts at a distance; pretty much the worst-case scenario since the game is drawing all of it at once. If that does alright, you can probably rest assured your phone is up to it. If not, I encourage you to go ahead and use the Google Play return system to get your money back. Please remember this has to be done quickly; otherwise refunds are on a case by case basis and frankly much harder to do.