I have no idea if this is a good place to ask this, but how are the HD558's for games like red dead redemption and demons souls.(No I don't play online game's).
Also how bad is the sound leakage on them? I'm not interested in bringing the outside but I need to know if it's bad enough to annoy people 10 feet away or wake them up.
They're pretty good - they've already been mentioned many times in this thread if you search.
They will leak some, If someones in the same room they will probably hear it. Sort of like a pair of laptop speakers on very low volume.