As a game dev myself I’m curious to what you guys use to power this game. From the looks of it, it seems that you use HTML from the simple fact that some images in the game you can drag around like in a browser (i.e The logo and the large stand at G3). Is this some in-house engine? If it is you did a great job on it 
see www.greenheartgames.com/credits/game-dev-tycoon/ 
it’s largely our own code and our way to do things (you might call it an engine I guess) but with the help of a lot of libraries. createjs and jquery are the biggest helpers and of course the native version is powered by node-webkit.
Doh! Didn’t see that. Anyway, I’ve been trying to find a decent engine to get my game rolling. Its a fantastic idea, HTML games in standalone exe’s etc. Might give it a go my self
The .exe thing is called node-webkit, it makes you able to compile js. It’s pretty cool.