Unsupported Game (Can't add item also, no + sign on items->manage)

#1

Hi, How can I add my own custom game? I tried following the instructions on the docs as how to add a custom game, but I can’t find the + sign anymore on the Items -> Manage Items page anymore.

Can you help me?

My game is Rusty Hearts: Revolution

rustyrevolution.org

#2

Did you enable Expert Mode too?