I have pic related in a corner of my living room by some windows.

a litter box

>>2015450
I had a feeling someone would make that joke after I hit post. But what should I add for him to enjoy?

a heat lamp or heat pad.

Haha, fun

Your cat sounds like he has a lovely life. Maybe a mouse on a string? You can dangle it and they love to play like that.

>>2015456
He's hard to shop for when it comes to toys. Most of the ones I've bought him he destroys within a day or two of getting them. If it has a squeaker he'll dunk it in water until it's silent, if it has a string like a wand he'll chew through it. Feathers? He eats them. Bells? Chews on them to try to remove them until it gets damaged enough that I need to confiscate it. And so on. Pretty much the only toys he can safely have are mice and balls, but he doesn't have much interest in them. He's very, very big on wands like you mentioned, but I haven't found any that stand up to his abuse.

>>2015449
Let him outside

>>2015490
I do. In a 6'x6' mesh tent. I wish it was larger or a little more interesting for him, but he doesn't really have much interest in the outdoors anyway. He doesn't run to doors when they're open, he just sits at the top of the steps and looks at them. In fact if you open a door to outside near him he'll run in the opposite direction.

>>2015462
>If it has a squeaker he'll dunk it in water until it's silent
your cat is so metal

In seriousness though, maybe you could just get another tree?

Tin foil ball and Easter eggs

>>2015449
Get him a new kitten friend