No paywall! A nice change of pace for a free mobile game. Just switch wifi/data off and you can play uninterrupted for as long as you want with no penalty. Blasted through to the last vehicle in less than 9 hours of game time, at the end of which i was fully prepped to tank through anything in my way with the final vehicle (mining dump truck thing) but it looked, sounded, and drove just like the rest of the vehicles. Fairly underwhelming, enough for me to uninstall before completion tbh.