Umm no, that isn't Gmod or X-plane.
FFFFFUUUUU steam. 'the steam servers are too busy to handle your request. Please try again in a few minutes.' then I go offline and get 'the operation cannot be completed offline. Please log in and try again.'
Now it won't let me play it until it updates every single game I own.
'The game is currently unavailable. Please try again at a later time.' It's been doing that to me for a month.