The free technical demo of D-GLES is a free Android app that is an unofficial port of the popular doom engine.

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The purpose of this application is to let you check the many controls schemes available (touch interface with multiple options, support of hardware devices (keyboard, gamepad), Xperia Play gamepad) and check the graphics improvements and VR mode.

So, if you are looking for a way to play your favorite game on your smartphone or tablet, or if you are planning to install a new game, and you want to play it on your device, you should download this app.