[quote=82572]I’m not sure on this, but I believe that Minecraft relies on the X-Window thing to listen for keyboard/mouse inputs. So I don’t think it will work to add it directly to the emulationstation menu.
However, you can do what I did, set up a new emulator in RetroPie/roms/Raspbian/ and put in that a rom called “Start Raspbian.sh” which has these contents:
#!/bash/bin
startx
Then you can navigate to /etc/emulationstation/es_systems.cfg, and add a new entry at the bottom named “Raspbian”, and put in the correct path to the emulator file, as well as setting <extension> to “.sh .SH”. Then, if done correctly, you can launch raspbian desktop from the emulationstation menu. Just not minecraft itself. 
[/quote]
Re-This couldn’t you very well have a Raspbian desktop pre-loaded with Minecraft (Obviously not ideal but). If you setup Raspbian to start Minecraft up on start-up wouldn’t this ‘In essence’ be starting up Minecraft in a way? Instead of exiting Minecraft you would have to save/logout and exit the OS though. Not sure if it would kick back to ES.