Glimmer

Glimmer is a mechanic that is usually only experienced if the player character has a high level of mental mutations. Glimmer is a quantified measure of how powerful a creature's mental capabilities are, or how noticeable in the case of those that frequently use Mass Mind. It is calculated by summing up all of the creature's mental mutation levels. This includes levels gained through Ego modifier. 1 point mental mutations that cannot level add 1 to the current glimmer.

If the player character is currently dominating another creature, the glimmer is based off of the original dominator of the domination chain.

Effects of Glimmer
There are two thresholds that glimmer can surpass to have significant effects.

20 Glimmer
Upon surpassing 20 glimmer, the player receive this message. The player character will then start to be pursued by psychic hunters.

In the journal, "You had the feeling of being watched, and learned that there's a sight older than sight." will be noted as an accomplishment.

40 Glimmer
Upon surpassing 40 glimmer, the player character can encounter extradimensional hunters as well. They have orange names and come from one of 8 randomly generated dimensions. Entering a screen now has a 40% chance of spawning an extradimensional hunter instead, and 30% chance of spawning a extradimensional cult hunter. If multiple hunters were supposed to spawn, there is a 50% chance of them being an extradimensional solo hunter. This is noted as "You learned a cosmic truth, early among truths, about the locality of space and time as you knew them and an aether vaster than both." in the journal.

Esper Hunters
Esper Hunters are separated into bird-based ranks depending on their glimmer. As such, these hunters will have the same ego as the player character as well as the same level. There is a 10% chance upon defeating any hunter type to have their psyche absorbed by the player character, permanently increasing their ego by 1.

Mutations
Their mutations are generated based off of the player character's mutations. For every mental mutation that costs more than 1 point, the hunter will randomly get a mental mutation also greater than 1 point that is the same level as that mutation.

Seeker Hunters
Seeker hunters, or are the first type of hunters that the player will see. They are named, and have appended to their name. If the player character has greater than 250 reputation with the Seekers of the Sightless Way, these hunters will not spawn.

These are based off of the base sightless way, but with level 1, 16 HP, +1 intelligence, +1 ego, +1 willpower, and -2 toughness. Their faction will be of the Seekers of the Sightless Way. Their base ego is set as the player character's ego, so their ego will always be higher by 1.

Thralls
Seeker hunters are the only type that also have thralls that follow them. The type of creature enthralled is determined by the hunter's tier type. There, A random creature of the same tier will be created. There are exclusions to what can and can't be thralls:
 * Must have a Brain that can be beguiled
 * Does not traverse through walls
 * Can move
 * Does not have the "Proper" value in xtag Grammar (to check against legendary and unique creatures)

Extradimensional Hunters
There are two kinds of extradimensional hunters: solo hunters, and cult hunters (hunters that belong to a cult). They will have appended to their name. Unlike Ptoh's Hunters, extradimensional hunters can be of any creature type. The creature type will have around the same level as the player character. Also unlike Ptoh's Hunters, their main faction is the hidden Playerhater faction, which means it is impossible for them to be neutral or friendly. On death, they and their loot will disappear unless it is extradimensional.

Cult Hunters
Cult Hunters are part of a cult from another dimension. 79.2% of the time, the cult will be focused around one mental mutation. They also may have a cult symbol. Hunters from this cult will always have this mutation with the mutation level at their level/4.

Cult hunters also have a 5% chance of their most valuable item to be extradimensional. This will not disappear when the hunter dies. When this happens, "(hunter) drops a (item), and by sheer chance (it) quantum tunnels and fully materializes in this dimension." will appear in the message log.

Absorbing Psyche
Upon defeating a hunter, there is a 10% chance to absorb their ego.

Esper Hunter Generation
Whenever the player character enters a new zone and their glimmer is between 20 and 49 inclusive, there is a 0.2 * (glimmer - 5)% chance that a hunter will spawn. If their glimmer is greater than or equal to 50, the chance becomes 0.0666*(glimmer + 65).

If glimmer is greater than 34, there is a 0.5*(glimmer-20) % chance that an additional hunter will spawn. If glimmer is greater than 49, this chance is rolled two more times, and then a third roll if glimmer is greater 80 with a chance of 0.5*(glimmer - 50)% to add an additional hunter.