How to run game on linux and mac

I make game with mono game as school project.
I tried making cross platform game with the desktopgl project in visual studio 2015.
But how can I run game on linux or mac? i read that i need to install some monoruntime and my friend got it working but is hard to use. is it possible to run game like in windows, click the game and it opens?
sorry for english not my first language.