Quake VR – QVR

Now the fun stuff… This cardboard engine port features the following:
* Uses the excellent Darkplaces Engine wrapped in the Cardboard SDK
* Non-VR mode – still requires a gamepad but you are not restricted to playing on cardboard only, quickly switch to non-VR mode to play (via the menu, or hold the Start button for 2 seconds)
* Configurable eye-resolution (for lower-spec phones) – If you find your phone is struggling to draw at an acceptable framerate, you can adjust to reduce the eye buffer resolution in the Options menu (it takes a moment to reset following a resolution change, be patient..)
* Re-texturing project support (http://qrp.quakeone.com/)
* Online multiplayer
* Supports mods (mileage may vary)
* Command line params using a text file – create a text file in the QVR directory called commandline.txt and populate with any command-line params you may wish to use
* Toy Soldier Mode – Play in 3rd person with a mini-marine running about in front of you causing havoc
* Visit QuakeVR.com for more information

As the original Quake sourcecode is GPL licensed, the full source for this is available in an archive contained in the assets folder of the apk.