Psi abilities
Psionic abilities can be seen as Underrail's equivalent of magic, game mechanics-wise. They're combat abilities that require psi points to use.
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 are split into 3 distinct disciplines — Thought Control, Psychokinesis and Metathermics. Unlike most other weapons, offensive psionic abilities cannot miss their targets unless otherwise specified.
Thought Control
Thought control discipline is the most indirect of them all and it's also the hardest to get really good at. It is considered by many to be nefarious and mind controllers are often untrusted. Offensive thought control abilities consist of manipulating the minds of living targets, such as overloading their brains, making them flee in fear or attack everything in blind rage.
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 stun targets with physical force or electric shock.
Metathermics
Metathermics, also known as Thermal Control is the area of psionic development that deals with instigating rapid temperature changes and chemical reactions. Metathermic abilities consist mostly of attacks that deal Heat or Cold damage and their side effects, such as freezing targets.
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.
You can also learn Bilocation from the Mysterious Pillars in Silent Isle. Another set of Mysterious Pillars can be found in Core City Sewers during Praetorian Security questline.
