Homebrew Iterator Species Details

In Rain World, Iterators are immense, semi-organic supercomputers designed by the Ancients to solve a metaphysical problem: how to ascend beyond the cycle of death and rebirth. Towering in size and built into the environment itself, these colossal beings are part machine, part living ecosystem—composed of vast internal structures filled with water systems, wildlife, and decaying architecture. Despite their size and function, Iterators possess personalities, emotions, and the ability to interact with the world and beings within it.

Each Iterator is housed within a towering facility that operates through complex fluid dynamics, using pressurized water as a cooling and computational medium. These inner workings give rise to entire habitats where creatures—including the player character, the slugcat—can explore, survive, and occasionally communicate with the Iterators themselves. Their inability to fully achieve the task they were created for leads many of them into existential stagnation, madness, or introspection.

Notably, Iterators such as Five Pebbles and Looks to the Moon are central to the game’s lore. Five Pebbles, once a brilliant mind, becomes obsessed with breaking a cosmic taboo in an attempt to solve the Great Problem, inadvertently causing immense suffering to other Iterators. In contrast, Looks to the Moon is a more empathetic and nurturing presence, though she’s left crippled by the actions of her peers.

Interacting with Iterators in Rain World offers players a glimpse into a haunting, decaying future shaped by lost civilizations, unsolvable questions, and the remnants of godlike intelligence. Their melancholic presence underscores the game’s themes of entropy, futility, and the search for meaning in a dying world.

Iterator Traits

at level 8 the creature gains an ability called overseer. you gain controll over an overseer. it is an eye stalk like creature that can attach to any surface. it has four feelrs. when you gain this abilty, you can choose the coloration of the overseer. you cah use bonus actions to command the overseer to do something.

Superior data base

You gain profeciency in history and nature

Ability score increase

your Intelligence score increases by 2 and your Constitution score increases by 1

Construct nature

You dont need to eat. instead of taking a long rest, you can spend 4 hours in a trance like state in which you remain conscious but cant move

Darkvision

You have superior vision in the dark and dim conditions. you can see dim light within 60 feet of youas if it were bright light, and in darkness as if it were dim light. you cant discern colours in darkness, only shades of grey

Hologram

You know the minor illusion cantrip.