A game by Cat Nigiri for PC, Mac, Switch, PS4, Vita, Xbox One, iOS, and Android, originally released in 2017, with the Deluxe version released in 2019.
In Necrosphere, you play the role Terry Cooper, some sort of agent who is killed during an ambush, and his spirit (or whatever) passes into the Necrosphere. Fortunately, his partners in the real world manage to survive have somehow found a way to slip little helpful notes into the Necrosphere to aid him on his quest… which is to find an exit and return to the Normalsphere. In order to do this, he’ll need to complete some tough platforming challenges and earn powerups that allow him to explore additional routes, metroidvania style.
According to Terry's still-living friends, the Necrosphere is the size of Earth, and he’ll have an eternity to explore and find the exit, which is rumored to have been permanently sealed. Fortunately, the game world is considerably less than the size of an entire planet, and level designs are somewhat straightforward, so the player won’t spend much time wandering aimlessly.
