Undercroft is your basic RPG. You create four characters and control them as one.
youtube.com/watch?v=GpIuW6tUQHQ
computer-game.us/adventure_rpg/undercroft.htm -for the computer verson.

I personally played the app on my itouch all the time and think its a great game, a break from scary games like slender
The game makes you stratigise and solve puzzles. Cant solve puzzles? Thats okay the complete solution to EVERYTHING is free. (Its actually comes with the app)
I have no expirence with the computer version but all the info is in the link above

Im addicted to the game :3
I acctually found it while i randomly searched up runescape on my itouch.
I think runescape made the game...i havent looked into that so i dont acctually know

Well it just a suggestion~ and if all the suggestions you recieved were always good then Pewdiepie would be flooded
And its not like its going to hurt my feelings if its never played or if someone has a different oppinon from mine :3

Once again its just a suggestion