This allowed me to play doom with one hand (sorta). I used my thumb to hit space bar for activating switches and doors and my pinky for shoot on ctrl. In the old doom there was only look left and right (no up and down) I binded turn left to Q and turn right to E so i could turn while using WASD. Most new games expect everyone to use a mouse or a controller. In my experience that only works on older shooting games. If you cant use one or dont have access to one you may be able to bind look left/ right/ up/ down to some keys on your keyboard depending on the game you are playing.
It is better to just use a mouse if you can.
There was one that kind of worked but was not good enough to actually play a game. I have tried everything I know on a few models. (N-key rollever is found on most gaming keyboards and it allows for more keys to pressed at the same time without loosing the input) There are only so many wires for the keyboard as an input device. Its like keys ghosting on a keyboard that does not have n-key roll over. Its as if they are on the same line so to speak. And if you start typing the input from the track pad cannot be detected. The track pad and the keyboard are tied together so to speak. You will more than likely have to use a mouse.
