One suggestion: Get some cabinets and place them along the top of the east(?) wall – the one nearest the garage. You can have a line of cabinets extend the length of the room but only extending 16 inches down from the ceiling. You can put some lights underneath for “mood” or to spotlight art, have doors to keep the dust out / clutter in and mount artwork on the doors if you want. Then you can get rid of that one last book case that looms in the middle of the room.

And new paint … yes paint. Now that the walls are more visible the room looks rather … pink. It’s just hard to get into a good monster slashing, blaster blazing, bullet spewing first person shooter death trance surrounded by soft pastel pink 😉