Trying to actually get a serious answer, gamers are most definitely much more male and much younger than the average voter.
Using the 2016 exit polls, men split 41-52 for Trump (or 13 points to the right of the national PV) while people age 18-29 split 55-36 for Clinton (or 17 points to the left of the national PV).
Since not all gamers are male or young; these effects would be reduced, and since they also counter each other, I would say the average gamer is a swing demographic, possibly very slightly to the left.
Doing stereotpyical console splits for fun, Nintendo gamers would be Safe D, Sony gamers would be tossups, PC gamers would be Lean R and Xbox gamers would be Likely R
Would Madden, NHL, or FIFA-type gamers be a swing demographic, D-favored, or R-favored?
My guess is that FIFA players would lean D, while Madden players are a tossup and NHL ones may be R-leaning.
I imagine FIFA players would be much more hispanic than average? (and thus safe D). It would follow roughly the same divides as those same sports, except with a much younger average age.