DS5 could completely become addicted to video games if I let him. He has a racecar game on the PC that he loves but I limited him to 2 15 minute periods per day AND I require that he do certain things first like pick up toys, get dressed, etc. (whatever I need him to do for me - kind of like the points system but not as formalized). I've managed to replace the racecar game with Crayon Physics, Fantastic Contraptions and Online Rider for now. I feel like the educational value of those is much higher than the racecar game which I find mind-numbing.