Great OT, kudos for it.
I believe that even if the melee aspect is atypical (rhythm/combo based with Lock), having a jetpack to explore around, paired with the post-apocalyptic theme should prove to be interesting for a lot of people.
The challenge though, is to convince them to give it a fair chance: I saw a (very confused) youtuber complain on an on about the game for the first minutes.. and then travel across almost all the map, with the initial weapon. He got killed multiple times, and missed a lots of places that clearly had good stuff. And yet, he seemed to had a great time, since it felt like he was playing a survival type of game (hiding, rushing, escaping) and eventually even got awed by some of the mountain vistas at north.
Unfortunately, the first hour or so is rough enough (and the archaic interface does not help), that it will likely dissuade a lot of famous players.