DCats are 14 months old, so they're young and active and love to play. One of them in particular constantly badgers us to play with him (will meow persistently and walk over to his toybox until we follow).
I probably spend 15-20 mins a day playing with him using his cat toys (usually in 5-10min chunks). DP plays with him too and he has his sister to keep him entertained as well. They're allowed outside in the day so not short of stimulation. I guess I just wondered how time other people spend on kitty playtime, because if you listen to DCat he will tell you he is terribly neglected 
I also wonder if maybe if he'll calm down a bit as he gets older?