Igliak

Igliak was a planet in the Praxus Sector of Polaris, orbiting a sun. It was the home of Meridian City, formerly the capital of Free Polaris and later the Polaris galaxy itself, and Luminopolis, both possibly being some of the largest cities in the Polaris Galaxy. Igliak was also the seat of the Galactic President of Polaris.

Great War
During the Great War of Polaris, the warbot Zephyr was stationed in the Zenith Outpost in Meridian City. Later, during the perilous Phylax intrusion, he was joined by another warbot named Cronk, who later became his lifetime partner. The two were later sent on a mission to secure a Gelatonium Refinery on the planet to be able to transport fuel to the Meridian Armory.

Ratchet & Clank Future: Tools of Destruction
When Emperor Percival Tachyon rose to power, the government and citizens of Meridian City refused to accept his control. Meridian City soon became the capital of Free Polaris, consisting of all planets and sectors not yet under Tachyon's control. Tachyon longed for years to seize control of the city, but even his large Drophyd armies were no match for the combined forces of the free planets in the Verdigris Sector.

However, when Tachyon used the Dimensionator to bring back his long-lost race of Cragmites, his first action was to lead an attack on Meridian City. Over a quarter of the city was destroyed by the Cragmites' dropships. Ratchet and Clank went there to help suppress the invasion, and eventually succeeded: making Igliak the capital of the Polaris galaxy.

Ratchet & Clank: All 4 One
After the Cragmite invasion, Igliak became the seat of the Galactic President, which was now Captain Qwark. With Meridian City not being the only large city on the planet, the lumenoid powered city of Luminopolis was attacked by a Light Eating Z'Grute that was released by Dr. Nefarious, yet only to backfire on himself. Ratchet, Clank, Qwark and Nefarious joined forces to defeat the Z'Grute - weakening it in front of Zogg Tower and eventually preventing it from accessing a major power source in the city (which caused a major blackout) and therefore killing the Z'Grute. However, the Creature Collector or Ephemeris arrived and snatched not only the Z'Grute but also Ratchet and the others and took them to Magnus.

Native Wildlife
Despite being a large city world, Igliak is home to many creatures. Here are ones known to exist.

Hostile Creatures Other Creatures
 * Lumenoid: These odd jellyfish/fish like creatures generate electric impusles. They are incredibly valuble, as they power all of Luminopolis, a city named after them. They however aren't to friendly in person, as they shock creatures that they deem as a threat. One smack is enough to kill them. These creatures also make a good snack for hungry Z'Grute.
 * Light Eating Z'Grute: A large beast that feeds off electric, it is extremly rare. It was frozen in hypersleep, but the Dr. Nefarious had Lawrence free it to kill President Qwark, only to have it destroy the doctor's ship. It then went on a rampage using electic attacks throughout Luminopolis until the 4 brought it down using Zogg Tower. It attracts the attention of the Creature Collector shortly after and is captured along with the 4 heroes. It is eaten later by the Grivelnox near the end of the game. It might be native to Igliak.
 * Undead Zombie Dung Dragons (Never Fought): Apparenly once exiesting on Igliak due to the radioactive sun, these creatures ambushed Cronk and Zephyr in a Gelatonium Refinery on the planet. They were defeated using toilet paper and an old spork. They are never seen or fought by Ratchet.
 * Krull: A creature found in the waters of Igliak, often fished for. It's never seen by Ratchet and Clank, as it's only mentioned.
 * Igliak Heli-Grub: A Heli-Grub very similar to those found on planet Merdegraw. Used as light bulbs for street lamps by the citizens of Luminopolis.

Trivia

 * Krull were often caught in the waters of Igliak.
 * Igliak is pronounced Ig lee ack

Ratchet & Clank: Tools of Destruction

 * Cragpole
 * Cragmite Hunter
 * Enforcer
 * Cragmite Warrior

Ratchet & Clank: All 4 One

 * Consumer Bots
 * Lumenoids
 * Cleaner Minions
 * Scout Minions
 * Light Eating Z'Grute

Ratchet & Clank: Into the Nexus

 * Blade Ball
 * Nether Warrior
 * Nether Flyer
 * Nether Portal
 * Serathoid
 * Biobliterator
 * Netherbrute
 * Mr. Eye

Appearances

 * Ratchet & Clank Future: Tools of Destruction
 * Ratchet & Clank Future: A Crack in Time
 * Ratchet & Clank: All 4 One
 * Ratchet & Clank: Into the Nexus