I am pleased to inform you that the unofficial SQ prequel "Decisions of the Elders" has been released yesterday.
Playing Roger's parents it's up to you to save the legend. Decisions of the Elders is a full length (about 30 rooms) retro game (320x200 EGA graphics, AGI fonts) with challenging puzzles. But don't worry! Even though this game is a tribute to the beloved Sierra adventure games there are no dead ends. And there is a walkthrough available! If you loved the old Sierra adventures there's a really good chance for you to like this game! You have heard of this game before? That's because a short part has been pre-released in 2012. Now the game is completely finished!
The game can be found in the games database of AGS (adventure game studio).
You can also download the game directly at: http://www.tonundtext.at/downloads/DOTE.zip
I will also try to attach the ZIP-file to this thread.