This is my new game. It's a Myst-style clone. You just have three commands Examine, Pick up and Operate. Move the mouse to the bottom of the screen to pop up the taskbar. You move left, right, up, down, forward or back (down) whenever a hand icon appears. Move around the screen for the action text to show anything interactive.
It's a short game and I did it just to see if this style of game could be achieved and if it can use a taskbar. There were issues with the set focus, screen position, character's speech text and Use ... with ... command but I overcame them. Using a taskbar seems to be the only way to function the use ... with ... command so I've not used the right-click button because of that.
I used Bryce 5.5 for the landscapes. You can get a free copy from DAZ 3D but you need to register:
http://www.daz3d.com/i/software/bryce/breg55?/bryce55