I've been playing for 2 weeks where i couldn't make any progress. This game "heavily" force you to pay and watch ads to make any progress at all. Avoid this game. Edit: since the dev answer, i'll list all ads i know. 1. Re-rolling quest(1 ads for each re-roll). 2. Ad for getting "free" unit. 3. Ads while match making, and this is the most annoying one because it make "auto find match" useless.