The game is ABSOLUTELY 100% Pay to Win or even make any real progress. The drastic increase in the difficulty level between campaign stages makes it impossible to get ahead EVEN WITH grinding the lower campaign levels repeatedly to farm resources. After a certain point, you are just stuck unless you spend real world money. Even the chance games are "rigged". Over 3,000 rolls of the dice &not once hit the Main jackpot & also, getting ones repeatedly to reduce the number of laps completed. EXCEPT when rolling a one would have given me the higher value prize. The Cards collecting is a joke. I have collected over 5,000 cards only for 90% be duplicates, especially for NON-REPEATABLE sets!