I've played my fair share of RPGs in my life and even I forgot this game existed as I've only seen it once or twice. But Superhero 2044 was a table top RPG that came out in 1977, using some of the same mechanics as D&D to create a superhero adventure where you and your friends did battle against the forces of evil as an RPG Justice League. Unfortunately, the game didn't receive much popularity at the time compared to its more magical and adventurous counterparts that were already popular at the time. It still has a dedicated fanbase who slowly change over time, and you can find info on the game to play it right now if you'd like. But you may not need to as the property just found new ownership.
Checker Book Publishing Group announced today that they've purchased the rights to Superhero 2044 from Gamescience Publishing, who basically weren't doing anything with it anyway. The company has already published artwork for the book on their website, along with the news that they'll be launching a Kickstarter this fall to help fund the game's creation and publication.
It should be noted that the company also produces comic books and graphic novels for properties like The X-Files and Star Trek. So you'll probably be seeing a set of comics to help introduce the series and the possible characters you can create in the game, as well as info for possible expansions as the game progresses.