Destinations lets you create, share and explore different worlds in VR: photogrammetry scenes, game worlds, or anything else that can be represented by a 3D model (using OBJ and FBX formats). Destinations Workshop Tools is the toolkit for creating destinations.
Guides are available here… http://steamcommunity.com/app/453170/guides/
Tutorial Example
https://developer.valvesoftware.com/wiki/Destinations/Getting_Started
Launching the Destinations Workshop Tools on a 2D Monitor without VR
This forum post illustrates how to extract a Windows Run Command that will launch the Destinations Workshop Tools on a given (pre-created) project (addon)…
http://steamcommunity.com/sharedfiles/filedetails/?id=701040241
Steam (but not Steam VR) needs to be running before you launch this. You can navigate the scene in its preview window with the WASD or arrow keys. An example Windows Run command would be something like… (the -vr and -toolsvr parameters have been removed)…
"D:\Programs\Steam\steamapps\common\Destinations\game\bin\win64\steamtours.exe" -tools -destinations_workshop
Select your destination scene (addon) when the Asset Browser tool opens.
Multiplayer
On 28th July 2016, valve announced that Destinations would work with multiple players and friends lists in the same environment and able to communicate via voice. So this offers a basis for “OpenVCE” and “I-Room” style destinations for group collaboration and operations centres.
http://steamcommunity.com/games/250820/announcements/detail/610620488088860267