welcome to Stockholm!
We have quite a few places here. Below is a list with the places with a good amount of well maintained machines. If you are interested in more have a look at http://stockholm.pinball.org or ask me
Söderbiljarden (Bondegatan 18). 9 machines (ST, TWD, GP, Mustang, PotC, AFM, TF, WD, KISS). You need to be a member of stockholmpinball ( http://www.stockholmpinball.com ) to get in for free, otherwise you need to buy a membership.
Ugglan Boule & Bar (Närkesgatan 6). 12 machines (Elvis, 24, T3, WoZ LE, TSPP, TF, CSI, GoT LE, IJ4, PotC, SM, WPT)
Biljardpalatset (Sankt Eriksgatan 52). 22nd of april they open their new pinball room with 20 machines (CBW, SM, ST, GoT, IJ, TAF, JY, WD, TWD Premium, AFM, MM, SS, XMEN, LotR, ACDC, Mustang, PotC, Avatar, IM, BtdK)