A playroom that children actually play in? Ideas?

[sureitsgrand]

Hi, we are lucky enough to have a playroom- something I would have loved as a child! But- my DS 5 doesn't play in it. What am I doing wrong?! Any simple ideas for a playroom that encourages kids to play if that makes sense. I can't take a summer of it being ignored!
The walls are plain at the moment, it's carpeted. We have lots of toys but I'm not sure they are the right ones.

He likes cars, Lego, imaginex and superheroes.

Its not a huge room.

Help?!

We have a sofa, little table, toy kitchen, book shelf and pets in ours (fish and guinea pigs). It’s more like a second living room. I’m in the process of building up a playhouse with slide and tunnel for it too, I want them to get more exercise over the winter.

I would post a pic but we’ve been in it most of today so it’s a total mess.

Storage is key.
He should tidy everything at the end of the day.
A fresh tidy, comfy room attracts them.
The room being a mess will likely put him off.
Make the room as attractive as possible.