Lastest update is more killing the game with more ads now, now everytime you upgrade items - ads (no ads before), enter caves - ads (no ads before), open terrain - ads, 5 minutes idle - ads, getting free resources - ads, and reward from watching ads for upgrades is decreasing like become 10%, while before is around 25%, glad I already finish it before this update. So, Good luck to all of you who just started this game with barrage of ads.