If you are really interested in playing with longer time controls against a computer then I can recommend the Chessmaster GM Edition. 
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Hello chess.com i have question for anyone that know's mainly the staff but. I've want'ed to have a go at chess.com's computer level 4 for quite some time now but all i see is it playing people at blits time controls hoping if sometime's chess.com could log it on there and making it avaliable of time control's 30 min+ (I'm not good at 30min eitehr my average is 40min+ but i know they won't make it avaliable for those time controls
).