More adventure games in which you can move freely (3D environments)
80 Days
Sherlock Holmes: The Awakened
Myst Online: Uru Live if you like an MMO -- if you prefer single player, try Myst Uru: Complete Chronicles
Dreamfall
Broken Sword 3: The Sleeping Dragon
Mysterious Journey 2: Chameleon
Myst V: End of Ages
Sentinel: Descendants in Time
Shadow of Destiny
Some of these games offer more than one control scheme -- you may want to go into the Options Menu and tweak the interface when you start the game.