I've played Mining Factory and got addicted to it as I love slots. First, I played on a small screen, but after finding out that it's not confortable, I switched off to a big one.That's when the whole gambling process started. The interface is very simple and clear. Though I couldn't understand the rules for the first time it took some time to get it and then I enjoyed playing. Unfortunately I was unlucky to win often, but when I won somthing, it was a big win. After filling the water tank I got access to the bonus game, but I couldn't get the biggest bonus. A long time I couldn't understand if the water level in the water tank was going to be saved if I leave now and want to continue later, but appeared to be true. The playing process is saved well, so you don't waste your time and money at this point.
My friend was lucky enough to get rich for 0.1 BTC after filling the water tank for the first time.
Maybe next time a big luck will happen to me