I recently downloaded "The Silent Age – Episode One" out of the blue onto my iPhone. I was pleasantly surprised. It's probably one of the best adventure games I have played in years (on any plattform). The story is brilliant. And the graphics amazing.
The game is free to download on iOS and Android but the developers need funds for the second episode. So go download it and if you like it give a donation for episode two. I can't wait to play it! that's why I advertise it here. I don't have any affiliation with the developers.
Here the link to the official website: