Trine 2

If you ever wanted to try 3D gaming while being too lazy to install 3D driver software, Trine 2 will be a really nice surprise. It's a true native! And it's well prepared for most existing 3D setups.

There's no workaround for this awesome game, because it is already prepared for fullscreen crosseye 3D. It just needs the latest update installed (v1.13+ ).
Start the launcher and choose "Side-by-Side No stretch (swapped)", like below.

You're done. Enjoy an awesome 3D native game. It's 12.99EU on steam and it worth every cent.
Inside the game visual settings, you can tune the separation, convergence and you can even choose the user interface 3D depth!