Monopoly - Public Domain?

Is monopoly in the public domain?

I'm wanting to get a multiplayer online version made for me, so I want to find out if it's in the public domain. It's confusing me if it is or not... Theres similar games, like Anti-Monopoly, which were sued but won against Hasbro in the 80's, so that shows in my favour, but is it or isn't it in the public domain?

No it isn't. It's a commercial property.

I'm assuming Anti-Monopoly was a "parody."

Do you think Games.com and Playsite.com got a license then?