hi and welcome to windows 10, i believe in your case we need to weed out the ones that you cant play because the list of supported phones are almost 99% as almost all app being optimized for 512mb ram device and is the only factor.
so basically you cant play games which require 1gb of ram. Like modern combat 5 , Spider Man, Dark Knight, FIFA 14 and NFS Most wanted. . many of the famous titles like subway surfer and candy crush is also available on lumia 630