so far haven't encountered problems installing and running games on Windows 8 64bit
In fact starcraft 1 runs better on Windows 8.
i recall nga sa Windows 7 64 bit i had to launch the game via a .bat file para dili ma distort ang intro graphics.
for those having problems w/ installing netframework 3.5 w/c is required by some games and apps
you can install online from Micrsoft or via installation media.
for some windows' games you must update your game for windows live client.
here's starcraft 1 on my windows 8,
diretso ra install and play.
no distorted graphics on intro
games installed so far old and new
Windows 8 Pro
64bit
Acer 4750G i5
edit:
hmmm Ship Simulator Extreme + Update and DLC gets stuck on loading screen w/ Windows 8
minus the update and DLC ok ra.
it's a buggy game to begin with