This game, which was previously a fun game, although pushing the boundaries of being a pay-to-win game, with its latest updates, has become a thinly disguised subscription based PAY-TO-PLAY game.
The developers have introduced an essential resource to the game, without which the game is practically unplayable, and put the only meaningful supply of that resource behind a monthly paywall. Therefore, the game has become a thinly disguised subscription based pay-to-play game.
I don’t mind paying up front for a game, or, in the case of a free game, paying for extra goodies, which I frequently do (and did in this game) to support developers. However, if the game is made essentially unplayable unless, in this case, one spends $20 per month to get the resource required to make the game playable. . . well that’s where I draw a line. And, unfortunately 6Wave, the developer of this game, just crossed it.