I'll try to ease your pain with a funny, perhaps painful but true story. In the fall of 2010 (mid October) yours truly was up on a ladder cleaning out leaves from a long gutter surrounding our deck (44 ft). I was just about done, at the top of the ladder (9ft up) when the ladder kicked out and I fell shoulder first into the hard deck. I fell so hard I bounced up but knew I was hurt. Was able to stumble into the kitchen, grab the phone with my right hand and lay down to call my wife who was at karate. No answer. I had the front door open for the ambulance ( I knew I was hurt bad) and finally reached my daughter. Off to the hospital where I had a fractured left shoulder (the ball joint was cracked clean through but not displaced) and a fractured scaphoid bone in left hand. They casted my left hand to the elbow with my thumb immobilized and I had to wear a sling on my left shoulder.
I had just pre-ordered the COD that was to come out in November of 2010 and now I was unable to play it for at least 7 weeks. I was devastated.
My wife and I were also scheduled to fly to San Antonio the next week to visit our daughter and son-in-law. Our daughter was expecting our first grandchild and we were going to be there when they had the ultrasound to determine gender. I was determined to be there so to fly, I had to wear a device like a straight jacket to immobilize me. Hurt like the dickens but I wanted to go.
While there, my son-in-law and I went to the Best Buy and he asked if I could manipulate a game controller with my left hand fingers (thumb was useless and immobile). It was very tender but it worked! (He still laughs about that moment)
I ordered one from Newegg and it was there when we came home. I hooked it up to my PC and slowly but surely I started using the four fingers on my left hand to manipulate the controller(hurt at first because of my broken shoulder etc). It was the X box Microsoft version.
I was able to play COD, (not very well but can't do it now) and my spirits lifted. At my age then, 59, the cast had to stay on 7 weeks so you would expect a fair amount of atrophy - muscle loss etc.
The Orthopede cut off my cast and felt my left arm and was amazed at the muscle tone. I hardly had any atrophy! When I told him what I did, he shook his head (he knew I liked video games) and just started laughing.
Good luck. You might want to try the controller for your right hand.