Return to Blockland (or RTB) was a social network that Blocklanders could access in-game if they had the addon installed. It gave players the access to a chat room, a "friends" and "friends list" function, and a menu to install addons from the menu. I know that there is more that I am forgetting, but it has been more than a year since it was shut down.
It was shut down around February 6th, 2014.
There is however, a website that emulates the website edition, not the overlay. It is however, just the addon menu. I can't link it here, but you can still google it.
Guy 1: Dude, I just found this cool addon for Blockland!
Guy 2: Really? What is it?
Guy 1: It's called Return to Blockland, or something like that, just install it. It adds social features and a place to install addons.
Guy 2: Sounds cool, let's check it out!
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