Black Screend Apllication not creat Render Window

Teil 7 - Wimmelbild am Portal

Is this game gonna be fixed any time soon?

Unabled to get the lens in part 6 - bug?

Difficult game to play

Problem with sound.

1st Achievement bugged?

Mouse Lag

Sudden Termination

I cannot continue the game, I can't get nor use anything and the hints say there's nothing to do...

I am unable to get passed the first puzzle :( Bug , or my wrong ? ( Spoilers , btw. )

I wish I had a friendfriend... :-(

SteamOS/Linux and Mac support?