Periodically, two new leagues are created and the previous two challenge leagues are removed. These leagues are intended to introduce and test new content while providing players with a fresh economy. Challenge leagues are three or four months long. In addition, each pair of leagues has a set of optional challenges that can be completed for a prize.
When a challenge league ends, all characters and their stash will be sent to their respective Permanent league (either Standard league or Hardcore League). Map progress will be transferred, along with Shaped maps and Sextants. The greater of Master's level will be retained, and accrued favour will be added to the existing total.
2020 Harvest League (PoE 3.11 League, Started on Jun 20, 2020) In Harvest, players will meet a new NPC named Oshabi, a figure cast out by the Azmeri who condemn superstitious activity. Oshabi believes in the power of the land and the potential that it holds, especially after discovering the ancient Sacred Grove. But to make the most of the Sacred Grove's power, she needs players who can help cultivate its soil. VIDEO Delirium League (PoE 3.10 League, March 16, 2020 to Jun 16, 2020) The new Delirium content gives each area an item called the Mirror of Delirium. Players will see a ghostly reflection of their character in the Mirror and touching it causes the player character to enter a special Delirium state. In this state, the area becomes covered in mist and any existing monsters gain new abilities, while other new monsters will also spawn, acting as a manifestation of the player character's fears. The further players move into the mist, the more monsters will appear and the more extra abilities they have, making it more challenging. VIDEO 2019 Metamorph League (PoE 3.9 League, December 13, 2019 to March 14, 2020) In the Path of Exile 3.9 Metamorph league, you'll meet a new NPC, Tane Octavius, a master alchemist who studied in Oriath. Exiled to Wraeclast for killing his teacher, Tane searches for what makes the "self", by using his learned alchemical knowledge to assemble monster essences. He hopes to find a cure, or perhaps just the source, for what he calls "the intrinsic darkness" that led to his unforgivable violence. Blight League (PoE 3.8 League, Sept 6, 2019 to December 9, 2019) In Blight League, you'll meet a new NPC called Sister Cassia. As the story goes, fungal growths have spread throughout Wraeclast, controlling the minds of nearby monsters. Sister Cassia has built a device that can drain the ichor from the growths, but she needs you to defend it from infected horrors while it operates.You’ll find a blight in each area of Wraeclast, and this encounter plays out like a small tower defence game. Legion League (PoE 3.7 League, June 7, 2019 to Sept 2, 2019) In Legion League, the five large armies that have existed through Wraeclast's history are all coming back to re-ignite their age-long conflict. More specifically, “their souls are trapped in the Domain of Timeless Conflict,”you will randomly encounter the 'Entrance' of the Legion league theme on the map - special monoliths. Upon activating special monoliths in areas within the Legion league, players will be transported to the Domain of Timeless Conflict, where they will encounter two opposing armies locked in battle, yet frozen in time. In this league, the players will encounter Cavas and fragments of lost memories scattered across the world. Players can enter a memory that leads into a subzone, where they must move fast to stabilize and capture the crumbling memory. These memories are then used in the Memory Nexus to create paths that lead to other pieces of memory. Memories can contain fractured items that contain a permanently fixed mod. Fractured items can also be used to synthesize a new item base with a special implicit mod. Betrayal League (December 7, 2018 to March 4, 2019) In this league, the players assist Jun Ortoi on her mission to uncover and take down a mysterious group known as the Immortal Syndicate. Players can encounter a Syndicate member in a zone, along with their allies - or enemies. Once defeated, the member can be interrogated, killed, bribed, or coerced to betray other members. This process helps gather intelligence on the Syndicate, with the ultimate goal of sabotaging its divisions and defeating the Syndicate leader. Different rewards can be obtained based on who was placed in charge of a division, rank of members, and connections between other members. Syndicate members drop Veiled items which contain a mystery affix that can be converted into one of three different modifiers, which can be leveled up into stronger versions. 2018 Delve League (August 31, 2018 to December 3, 2018) Left untouched for over 250 years, the Azurite Mine has been consumed by a malevolent darkness that cast out the Eternal Empire. Niko, an inventor, has harnessed the power of Voltaxic Sulphite to create a machine called the Crawler that can pierce the darkness. Delve into the mine but don't leave the Crawler's light for long or you'll be crushed by the darkness. Incursion League (June 1, 2018 to August 27, 2018) Built at the height of the long-dead Vaal Empire, the Temple of Atzoatl holds stores of untold wealth and the population of a small city. But in the wake of a cataclysmic event, the temple and its secrets were swallowed by the jungle, forgotten by the world... until now. In Incursion, explorer Alva Valai is searching for the ancient Vaal treasure temple of Atzoatl. Travel back in time to discover the location of the temple and change its history to maximise your reward. Bestiary League (March 2, 2018 to May 28, 2018) In this land, where knowledge is strength and ignorance is death... A hunter must know his prey. In Bestiary, hunter-scavenger Einhar Frey will teach you to hunt, capture and sacrifice beasts in order to craft and modify powerful items using the Blood Altar. With Einhar's help, you can capture any of the beasts of Wraeclast. As you master the art of hunting, you can capture Legendary Beasts, which are rare and formidable foes, or beastcraft a portal to the Spirit Lands to hunt one of the four Spirit Beasts. Abyss League (December 8, 2017 to February 26, 2018) Before Solaris graced Wraeclast, a race of repulsive beings, fearful of light, populated the gloomy wastes. They were thought to be long dead, with few traces and no mentions in historical accounts. That is, until the earth itself was torn asunder. For aeons, in the deepest, blackest reaches, they have festered and multiplied. Now, they're clawing their way back to the surface in unprecedented numbers; a hateful swarm of hungering horrors hellbent on reclaiming Wraeclast. Push them back, or be swallowed by the abyss. 2017 Harbinger League (August 4, 2017 to November 27, 2017) Mysterious Harbingers have appeared throughout Wraeclast. Harbingers use a language never before heard by the people of Wraeclast. Their true nature remains a mystery to be solved. Legacy League (March 3, 2017 to July 31, 2017) Legacy pays homage to the leagues and items of the past. Do you want to experience the heart-stopping surprise encounters of Invasion, risk valuable items for even more valuable rewards in Talisman, or acquire powerful crafting items in Essence? In the Legacy league, you can choose your own challenges, and even mix and match them. Breach League (December 2, 2016 to February 27, 2017) Tears in the fabric of reality have formed throughout Wraeclast. Engage them to expose an alternate realm and reveal those who dwell there. Slay monsters inside the Breach to keep it open long enough to reap your bounty. 2016 Essence League (September 2, 2016 to November 28, 2016) Encounter groups of monsters trapped by an ancient force, break them out to steal their Essence then use these to craft powerful items. Prophecy League (June 3, 2016 to August 29, 2016) Cross Navali's palm with silver and she will tell your future, divining a Prophecy for you to fulfill. These Prophecies will take you to the farthest reaches of the continent as you strive to achieve your destiny. Perandus League (March 4, 2016 to May 30, 2016) In the wake of the Cataclysm, the locations of the kingdom's stolen treasures, secreted away in caches throughout the land, were lost to record and tale. Of the Perandus family, only Cadiro remains alive, forever sustained by his devotion to Prospero. He wanders the countryside in search of his lost caches, eager to reclaim them and their riches. Talisman League (December 11, 2015 to March 4, 2016) Talismans are infused with the power of the First Ones, the primeval gods of the ancient Ezomytes. The creatures of Wraeclast are instinctively drawn to these relics and the feral vigour they impart. 2015 Warbands League (July 10, 2015 to October 2, 2015) Warring clans have spread throughout Wraeclast. During your travels, you'll occasionally encounter one of their Warbands - A tight-knit group of enemies who cooperate to take you down. Tempest League (July 10, 2015 to October 2, 2015) Wraeclast is affected by magical Tempests. These can cause a variety of effects that influence both monsters and players, such as changing their sizes, causing damage, altering drop rates or even automatically animating weapons that drop. Torment League (December 12, 2014 to March 24, 2015) Your adventures are haunted by the spirits of tormented criminals that yield their ill-gotten gains when slain. Eager to protect their trove, these spirits flee when encountered and imbue nearby monsters with dangerous powers, which improves their item drops. Bloodlines League (December 12, 2014 to March 24, 2015) Each pack of magic monsters has a shared Bloodlines mod that greatly influences combat - sometimes while the pack is still alive, and sometimes after it has been killed. 2014 Rampage League (August 20, 2014 to November 20, 2014) Rampage is built entirely around the notion of maintaining a kill-streak : Exiles will grow faster in attacks, faster in movement, and stronger as they keep their Rampage alive. Ambush League (March 5, 2014 to July 5, 2014) Ambush is about risk and reward. Various new types of chests called Strongboxes can be found throughout Wraeclast. These chests are guarded by monsters that ambush the player when they are opened. The ambushing monsters must be slain before the contents of the Strongbox can be claimed. Invasion League (March 5, 2014 to July 5, 2014) In the Invasion, areas of Wraeclast have substantially more monster variety, so players will run into unexpected and dangerous invading monsters from other levels or acts. A unique boss monster from an invading monster type is also lurking in each level, with powerful combinations of skills to catch the player off-guard. 2013 Domination League (October 23, 2013 to February 23, 2014) A variety of powerful Shrines now spawn throughout Wraeclast, surrounded by large groups of monsters that are influenced by their power. These monsters receive substantial bonuses or are protected by their shrine's effects in some way. If you are able to tag the shrine, you receive these powers for a short time. It's often very risky to run in and try to claim the shrine, but it is a gamble that can pay off. Nemesis League (October 23, 2013 to February 23, 2014) Rare monsters have one guaranteed mod from the Nemesis Pool, which makes the fight substantially harder. Anarchy League (June 8, 2013 to October 8, 2013) The corruption of Wraeclast has spread to the minds of many Exiles, turning them against one another. As you journey through the world, you will occasionally run into these exiles - Deadly computer controlled enemies who use the skills and items available to player characters. If you manage to kill one, they drop a lot of items including a magic or above for each equippable slot. Onslaught League (June 8, 2013 to October 8, 2013) The attack, cast and movement speed of monsters of Wraeclast has been increased. Like a lighter version of the Turbo race events, lasting for four months.