Enjoyed this until I got to the 3rd prison & the ads stopped working (just constantly loading) which makes it impossible to build or upgrade anything without paying real £. As one of the more expensive prices to remove ads (£12.99) I am not doing that! Also sneaky is that ads promise one amount, but pay you less. Finally, a game that relies on ads this much should make them shorter. 35 seconds about Mist Play every few minutes is excruciating! Ultimately, a disappointment.