Uusi Aurinko


 * See also: Sun Quest Guide

The New Sun (in-game name Uusi Aurinko) is an object created by finishing the Auringonsiemen questline. As would be expected of a star, being in its vicinity will deal large amounts of damage. The sparks emit fire damage, the aura around it deals curse damage, and contact with the Sun itself deals Midas damage.

Questline
Around the top part of the western side of the Desert Chasm there's a stone structure resembling a mushroom. with a narrow tunnel on the bottom part. Walking to the end of the tunnel while carrying a Tripping status effect for at least 180 seconds will cause the inside of the structure to turn into Rainbow Liquid, which will reveal a map within, highlighting the locations of the fungal altars:
 * The western edge of the Coal Pits' Fungal Caverns.
 * Directly above the Brickwork structure with fungus glyphs on the western edge of the Desert.
 * The middle of the left side of the Power Plant.
 * Around the middle of the bottom part of The Vault.
 * The top-right corner of the Overgrown Cavern.

Approaching the altars with Tripping for at least 180 seconds will reveal its respective notebook, each one detailing on a step of the process of its creation.

Obtaining these clues is not necessary for the process, however.

Creating the New Sun
After obtaining the Auringonsiemen, the first step is to throw it on the top of the Pyramid, where after a few seconds it'll transform into the Sun Stone (In-game name Aurinkokivi). Caution is advised, as the initial transformation and the Sun Stone itself will emit red particles that rapidly deal Curse damage, similar to those in collapsed Holy Mountains. The second step is to expose the Aurinkokivi to six or more explosions in a time span of one second. Spells that can be used for this purpose are:
 * Bomb
 * Holy Bomb
 * Giga Death Cross
 * Meteor

Additionally, instead of aforementioned spells, one instance of either Giga Nuke, Sea of Lava or the celestial beam from Sädekivi will suffice.
 * Nuke
 * Dormant Crystal
 * Lightning Bolt
 * Thunder Charge
 * Destruction

Doing so will transform it into the Sun Egg (In-game name Auringonmuna), crumbling and dissolving all materials around, dealing Fire damage to anything around it, and showing this message:

The Sun Egg will slowly float upwards, digging and dissolving everything in its path. Having a Kuu or a Kuulokivi in hand will make it come closer to you. The Sun Egg can also be partially destroyed by a touch of spell allowing you to move it with telekinetic kick. Obviously, utmost care must be taken, lest you touch the Sun Egg and lose a large chunk of your health.

The third step is to simply kill enough enemies by exposing them to the Sun Egg. Those spawned by spells like Summon Egg or Summon Swarm will also count. After this, the Sun egg will grow larger and brighter, start pulling things into itself, and the message appears again:

At this point, the Sun can turn various materials into Lava.

The final step is to throw the four elemental stones at the Sun Egg. Each one making it grow slightly in size along with causing a different change in it:
 * Throwing in a Vuoksikivi will turn it a purple tone.
 * Throwing in a Tannerkivi will turn it a green tone and increase its gravitational pull.
 * Throwing in a Kiuaskivi will turn it a reddish tone and increase its Fire damage.
 * Throwing in an Ukkoskivi will turn it a bright blue tone and make it start shooting lightning bolts at random directions.

After sacrificing all elemental stones to it, the Sun Egg will transform into the New Sun, and display the following message:

Bringing the New Sun or creating it in the center of the Moon and destroying it will bring forth another message:

After doing this, devouring the Dark Moon by either bringing the New Sun down to it or creating a second one in it will display yet another message:

Creating the New Sun, and devouring both Moons with it will unlock their respective Achievement Pillars.

The Dark Sun
Throwing in a Kakkakikkare at the Sun Egg before throwing the last of the 4 elemental stones during the last step will corrupt the process. The resulting new sun will nearly double in size and transform into the Dark Sun (In-game name Pimeä Aurinko) and bring forth a message:

The Dark Sun has a powerful gravitational pull and will deal massive damage to anything that falls into it, similar to a Giga Black Hole spell.

Creating the Dark Sun will unlock its Achievement Pillar. Devouring both Moons with it, although not displaying a message, will unlock an Achievement Pillar as well.

Miscellaneous
Killing Kolmisilmä through exposure to the New Sun will award a "Benign Sunshine!" gold statue in The Work (End), along with an Achievement Pillar.

Devouring the Moon with the New Sun and the Dark Moon with the Dark sun, although not unlocking a Pillar, will award the player with a crown cosmetic on Minä, along with spawning the respective Suns in place of the Moons. However, bringing any of the Suns to their opposite Moon and letting it devour it will reverse these changes.

Further info

 * Sun Quest Guide by Letaali et al.
 * The Sun Seed Quest (gdoc) by Mich