Update 26th February 2018: Greenworks plugin now on the addon exchange + update for NW.js 0.26.6
Since the launch of the addon exchange, we are now distributing the Greenworks plugin on there instead of here in the forum.
It would be inconvenient to bundle the Greenworks plugin with Construct itself, since each Greenworks plugin version is tied to specific NW.js and Steamworks SDK versions. However the addon exchange provides the perfect venue to provide a list of releases and some addon-specific documentation.
From now on, find the Greenworks plugin at this URL: https://www.construct.net/construct-2/addons/83/greenworks
We have also updated the Greenworks plugin for NW.js 0.26.6 using the Steamworks SDK 1.41. This version is only available on the addon exchange. Note that we have made a special release of NW.js 0.26.6 to work with this Greenworks version. (Previously we had only released 0.26.0 and 0.27.0. Remember you must match the version required by the plugin.)
In addition to that, we also have released the Greenworks plugin for Construct 3 also on the addon exchange here: https://www.construct.net/make-games/addons/84/greenworks
This was a long time coming! From now on this forum thread shouldn't be necessary. All future updates for both C2 and C3 will be published to the addon exchange.