Dual Monitor : Game on screen1 + User Interface on screen2 - How to?

[Tj0mmas]

@Nawrot

You can always try multiplayer on same PC. One client can render all (ie. 3d and gui) second client is only Gul.
However if your game will be “real” multiplayer at some point, that hax with 2 clients is more complicated than it is worth. You need to develop 2 projects, or gui only will waste memory and resources if code is identical to “main” game.
For singleplayer games (with fake multi for gui etc), you can do multiple monitors, each unreal “game” should run on separate thread, so it should be even faster than single game.

It’s intended to be MMO at the end, hopefully… then… what do you think is the best method?
Thank you