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I have two questions:
1. What is, in hours, the average estimated time to finish the game?
2. Is there a walkthrough for this game, or whether it is necessary to have walkthrough to play this game?

I am just interested in this game because of "Al Qadim - The Genie's Curse" in the "If you liked this game, you should try:" reference. I played Al Qadim before and liked it, so if this game is similar to it, I am sure I will like it too.