Updated review - gave it another go - Could be such a good game. However every bit of progression is built towards spending money. LOTS OF MONEY!! Ability to gain enough credits for Research takes an age. get attachment to increase experience.. costs money, earning gold takes lifetime unless you spend money. Such a shame as enjoyed playing. Unfortunately your reply to my review misses the point I made. I never said it affects the function. I said it takes an age to progress without spending.