Very addictive for a hands-off game! Done a few runs to level 50 before resetting. Eagerly waiting for the full release down the track on Steam.
It feels that past level 50 the constant bombardment of falling stones is overwhelming currently (Though may be because of the demo and available buildings). Even several well upgraded AR defense cannons coupled with vehicle turrets and several layers of rock destroying lasers covering the top I feel kind of resigned to watching the runners get thumped constantly from the storm of rocks and other things. Dodge chance, shields and beard powers only go so far.
It's still kind of fun to watch though!