It will act as your health, inventory, skills and perk system, and even armoury.
It Won't Be Easy
You're not the only one in The Void who is looking to get your hands on some of it — wandering souls who wander throughout the mournful realms are hungry and looking for it too. You just need to get to it before the other starved souls.You'll need to beat the monstrous Brothers and malicious Sisters in order to get them before they do, but desperation is plenty in this realm.
Draw Your Way to the End
In The Void, all the actions you do are through drawing: you'll use your blood in order to make your way through this endless desert,
Fight Them All
Fight off golems, bloodthirsty predators, wandering souls, and all sorts of other spawns of The Void as you try to collect The Color before them and find your way back to life.