Best games market in karachi

Hey guys,

I am looking to buy games (both new and used) for the ps4 and PC at wholesale rates. Please tell me which markets in karachi have the largest number of game retailers/wholesalers and from where i can find up-to-date market rates for such items.

I have already visited electronic market ( it had only 2 game shops!) and Rainbow Centre( This was like a maze and had barely any game shops!).

If you guys know any other good markets/shops then let me know. Specific shops at R.C which sell games should also be mentioned.