It plays just the same as the original Capitalism, with added real estate dealing and some changes to stores and business dealings.
You can build buy & sell apartments or commercial buildings, and occasionaly buy & sell radio/tv/newspaper buildings. (in effect free advertising, but these cost a fortune)
Another change is that many of the financial/HR options, - eg hireing managers of setting the dividend - are only available if you have built your "head office" and added the appropriate department.
There are now several types of stores, electrical goods, supermarket etc that can only sell certain items. (You can turn this off, and play with the original store sales rules if you prefer)
Also, the quality of farm crops is now determined by the unit level, instead of the fertility/climate/rainfall ina particular spot.
The game itself is a
lot more stable than Capplus for Windows, which seemed to crash every hour or so.
And of course, it's all in glorious isometric 3D now.
