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Psi abilities

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Psionic abilities can be seen as Underrail's equivalent of magic, game mechanics-wise. They're combat abilities that require psi points to use.

Contents

Psi mechanics

As of version alpha 0.1.14.0, all characters with Psi Empathy have 100 max psi points, regardless of Will score. Will still affects effective psionic skill levels and thus determines the effectiveness of psionic abilities, both their damage and chance to be resisted.

As of version beta 0.2.0.1, psi point regeneration scales with Will and Intelligence: psi regen = 5 + (will+int)/2.

History

Alpha versions prior to 0.1.14.0 had no psi regeneration. Instead, will score and level determined max psi points. The changes were made to make psi cost more relevant when choosing what to invoke. Abilities that were meant to be used as primary attacks have a low cost and can be spammed without running out of psi. However, high impact abilities can run you out of psi quickly.[1]

Background

Due to a recent genetic mutation, humans in Underrail have varying levels of psionic potential. No one is really sure how this genetic trait came to be, but research indicates that it is a relatively recent genetic mutation. However - it seems to be artificially designed mutation, since so many things about the mutation are just too complex and convenient to be random ones. Hal Roche argued the countrary, believing the mutation would've been way too complex to engineer with existing technology.

The player character also has this psionic potential, but it must be unlocked early on in the game by taking a pill that disables your brain's psionic inhibitor, thus granting you Psi Empathy. There is also the option of not taking the pill at all, leaving your character without any psionic abilities.

Some creatures and plants also have varying degrees of psionic mutations, such as the common Lacesso Gigantus mushrooms and psionic Azuridae beetles. Other forms of psionic mutations also exist in the Underrail, such as some rare psi enhanced polymorphic organisms.

Psionic disciplines

Psi powers in Underrail are split into 3 distinct disciplines — Thought Control, Psychokinesis and Metathermics. Underrail: Expedition expansion adds a fourth psi skill, Temporal Manipulation.

Unlike most other attacks, offensive psionic abilities cannot miss their targets unless otherwise specified.

Most targeted psionic abilities can be invoked through fences and gates, excluding projectile attacks which cannot pass through them (Cryokinesis, Cryokinetic Orb and Pyrokinesis.)

Thought Control

Main article: Thought Control

Thought control discipline consists of manipulating the minds of living targets, such as overloading their brains, making them flee in fear or attack everything in blind rage.

Psychokinesis

Main article: Psychokinesis

The Psychokinesis discipline is similar to telekinesis with additional electric powers. It can also be used to enhance unarmed attacks. Offensive psychokinetic abilities deal Mechanical or Electricity damage and may also stun targets.

Metathermics

Main article: Metathermics

Metathermics, also known as thermal control is the area of psionic development that deals with instigating rapid temperature changes and chemical reactions. Offensive metathermic abilities deal Heat or Cold damage.

Temporal Manipulation

Main article: Temporal Manipulation

Temporal manipulation psionics manipulate time on a very local level to the invoker's favor, primarily featuring delayed damage and buffing/debuffing. It functions well as a support skill that can be incorporated into other builds, rather than a primary skill around which a build is made.

Psionic trainers

There are two primary ways of learning new psionic abilities: either have a skilled psionic teach you, or use cebebral imprinting technology in the form of a Psionic Mentor device.

There is a trainer of each psionic discipline in South Gate Station.

  • Ezra is the thought control trainer. He can be found on the SGS level 7 cyber labs.
  • Bisson is the psychokinesis trainer. He can be found on the SGS station platform or at the gym on the medical level.
  • Quinton is the metathermics trainer. He can be found on the SGS agronomy level.

Several traders have psionic mentors for sale.

You can also learn Bilocation from the Mysterious Pillars in Silent Isle.


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