Yeah I ended up getting BO2 but would have been much happier with MW3,the multiplayer still feels fresh. The nostalgia feels amazing. (Had it on the Xbox 360) The Campaign is pretty alright, fun enough. As well the CO-OP mode where you have to survive for as many waves as possible, really fun...
I've got some more
XCOM - Steam (Any XCOM)
Age Of Empires II - Steam
No Man's Sky - Steam
Call Of Duty MW3 - Steam (MW3 the best one...)
RimWorld - Steam
StarBound - Steam
Rust - Steam (Might be 100% one day..)