Initially this game is a lot of fun, until the grind sets in, or the constant challenges that encourage you to spend, the worst one is the most recent top-up event, the top reward requires you to top-up 600,000 biocaps that equates to spending £1,000 to achieve (thats only because they dropped the top price down to £75.99, when it was £99.99 you'd be looking at £1200 to complete it), when devs start doing things like this it becomes obvious that they're only after your money.