I bought this game at year 2014, whenever I run it, gave me a validation failed, WTF. I tried several times and still no dice, maybe it's a bug unless the dev update and fix the problem that user who already purchased itI get a validation error
"please ensure that you are logged into the correct google account, and that you have not canceled your purchase"
you have to quit or email
Wowww
You bet you willGotta try this. And for anyone who got validation error, just use Lucky Patcher to patch it with non license verification check