6 years ago
Simple you can limit the Buypackage of gold. Per:
Week, monthly etc.
Per levels: Lvl 10-15-20-25-40 unblock BP option 1,2,3,4,5
Per days in row connecting: Option 1 unblock at 10 days of game, option 2 20, option 3, 30 days, option 4 60 days, option 5 80 days. Like Sign in every days at App Ios & Android games where games ofter gives you a reward by connecting every day.
And other stuff, but if you leave people keep coming in a game, which hasnt got more than 1 month of life (and buy over 3-4k of golds, and tank alone vs entire countries, then
your game will pass the same situation that passed: eR, IA, cR and others...