If you want a game that's constantly pushing you to spend money, look no further. You start the app, "Hey, spend $5 on this super duper limited edition thing, just for you." When you're in the middle of a mission, "Hey, go spend $10 to remove ads and make the game go faster." When you finish the mission, "Hey, remember that super duper limited edition thing that popped up when you booted up the game? Well here it is again, go buy it this time." Game does it's best to annoy you into spending $$.

the game was fun for the first few levels. there are a few hard ones that just require more xp/tower unlocks. then the game just gets boring around level 10. it plays better as an idle game if there was an auto skill picker, that a player could tier up. example pick hive > lazer > human ... and it plays itself. 2x speed is locked behind 50$ one time buy or 10$ a month. ads are agregiously scammy, not required but preferred to get more loot - no ads also locked behind 50$. too much 4 mobile.

Maybe it gets better late game, but early on is a miserable slog that tries as hard as it can to nickel-and-dime you into spending $15/month or FIFTY DOLLARS to eliminate advertisements. There might be cool builds there (the whole point of a game like this) but after a dedicated waste of 24 hours, you either finish the level or die before you can build any interesting synergies. I could write essays on how upsettingly obnoxious this "game" is. Do not waste your time.