Expose more Greenworks Steam cloud APIs to NW.Js and Electron (1.4.0: Supports NW.Js 0.82.0, Steam SDK 1.58, Greenworks 0.15, Electron with efc).
Allows you to buy virtual coins in game?
There are no purchasing options in the greenworks JS library this is based on. There are some ACEs for checking for DLC. See the ACEs available here: construct.net/en/make-games/addons/244/greengrinds/aces