Light dimmer for apartment living room and bedroom.

I'm looking for a light dimmer for bedroom and living room. My living room is roughly 350 sq ft with an attached kitchen, bedroom is probably 150 sq ft. I was looking on Amazon for an attachable light dimmer that would connect to the wall outlet. None look reliable or look like they even dim the lights that much and they have a high return rate. I don't really want a low wattage light because I have game nights and do need bright lightning some nights.