Immortal: Unchained is a game by a triple A indie company where you play a zombie with a gun. If you know the Souls formula, you have a pretty good idea what this game is generally like; challenging, you die and lose your bits, set of upgradeable weapons you need very familiar stats you level up with bits to use, etcetera.
Source: N4G PC Immortal: Unchained Review | Pixel Opinions