Things I possibly plan to do if I can do it but are not really important:
-A master server, of course. It would most likely not be used for mass multiplayer play, but instead for updates and a website and other things.
--Events will also be issued via the master server. Events will affect your singleplayer games. Some examples:
Temporary luck boost. (The luck system works by getting a random number luck~100.)
Item giveouts.
Changes in item prices.
Increased player speed.
etc.
---Certain events will allow online multiplayer in some form.
--Online battle mode thing that can get you money and items in single player games.
-"Intelligence Weapons" that can fight on their own and such.
--Customizable AI for "Intelligence Weapons".
