Video gaming seem to be down this alley on the study of self-motiviation.
Some games are made to burn time, like Thumper.
Some games are made to burn you neurons like Baba is You.
Minecraft has 2 modes. Creative and Zombie. Both equally powerful incentives.
I try to keep the plasticity of my brain. Not to let it crust and crumble like Play Doh left outside the tub.