ARK Lost Colony: Getting Started on Arat Prime
Lost Colony is, per ark.wiki.gg's own framing, "the first new canonically-progressing DLC Map for ASA" — the first paid canonical Expansion Pack for ARK: Survival Ascended, and the wiki calls it the overall sixth paid canonical Expansion Pack in the ARK franchise. It released December 19, 2025 on Steam, PlayStation, and Xbox — the wiki lists an identical December 19, 2025 date for the Epic Games Store release too — priced at $29.99. This guide is a getting-started overview of the expansion and its map, Arat Prime: what it is, the story setup, the terrain that makes it distinct, and how a new arrival gets oriented — not a deep dive into its skill tree or full creature roster, which are their own topics.
What Is Lost Colony?
The wiki's Notes/Trivia section frames the release's significance directly: Lost Colony "marks the first paid canonical Expansion Pack in the ARK franchise since Genesis: Part 2's launch in 2021" — a gap of 2025 − 2021 = 4 years between canonical paid expansions. It's also a run of franchise firsts: the first canonical expansion built for Ascended, the first with semi-animated, voiced "Conversations" pulled from the Engram Codex ("somewhat like JRPG-style conversations," per the wiki), the first with full CGI Metahuman and 2D anime-style sequences, and the first with a dedicated enemy faction (the Thralls) and raidable/defendable outposts. Those 2D sequences came from the Japanese studio MAPPA, also credited for Attack on Titan, Jujutsu Kaisen, and Chainsaw Man. Canonically, the wiki places Lost Colony after Genesis: Part 2 and before ARK 2.
The Setting: Arat Prime, the Lost King, and the Engram Codex
The wiki's Lore section calls the era "the Necrocene" — the narrative takes place, as written on the page, "~1,0034 years after the Reseed Protocol had been enacted at the end of Extinction" (quoted exactly, unusual figure included). Arat Prime is "the site of humanity's last stand, which holds a transluminal link to the Genesis Colony-Ship," and the Lost Colony proper is "a massive Gothic necropolis" surviving beneath Arat Prime's Great Dome — a barrier "powered by Red Element" that has been "repelling the Reseed Protocol for over a millennium."
Governing it is the Lost King, a tyrannical ruler voiced by Keith David who "seeks to maintain the broken state of the world to preserve his power." The central plot device is the Engram Codex, "a virtual library containing the stored minds and genetic data of humanity" that Helena Walker needs to reseed humanity in ARK 2's world. The landscape also carries scars from the Aberration ARK's crash — the wiki ties the radioactive "Aberrant Crash Sites" directly to that fallout. Returning characters Mei-Yin Li (Michelle Yeoh) and Diana Altaras (Katee Sackhoff) navigate the colony's factions. Worth flagging: the wiki's own Inconsistencies and Retcons section says the narrative has "many inconsistencies, retcons and plot holes — more than any Expansion previous," so treat the story as an evolving, retcon-heavy thread rather than clean continuity.
Unique Environmental Features of Arat Prime
The wiki lists eight entries under "Unique environmental features": a tiered gothic metropolis guarded by the Thrall army; a desolate Arctic expanse "scarred with craters and debris from a large fallen ARK that crashed back to Earth"; the Twilight Forest, "a fantasy boreal nightmare where the bioluminescent flora reacts dynamically to the Auroras overhead"; craggy peaks and knife-edge rocky spires; a twisted, foreboding woodland gateway to the map's more dangerous zones; a collapsed volcanic crater acting as the city's power core, where "superheated water channels geothermal energy upward, feeding the gothic metropolis with radiant heat," centered on a megalithic ring the wiki calls "a sacred ritual site consecrated by the Lost King"; scattered Hot Springs providing water and resources; and Aberrant Crash Sites — toxic-sludge zones where Aberrant ARK wreckage "corrupted the landscape, twisting flora and fauna into radioactive nightmares" around pools of the corrosive liquid "Edmundium."
The wiki's Regions and Approximate Spawn Locations sections for Lost Colony are both currently blank, so there's no named-region map or spawn-zone breakdown to point to yet — that detail simply isn't documented at the source as of this writing.
Getting Oriented: Outposts, Bosses, and the Skill Tree
Progress on Arat Prime runs through Outpost Missions, which the wiki says are "dynamic missions that grant some valuable loot and are also how to progress the map's main storyline." There are three: Defense Outposts, fighting alongside the Lost King's Thralls against "mindless Revenants" to earn the King's favor; Attack Outposts, breaching Thrall strongholds and looting the King's stockpiles "to fuel your rebellion"; and Resource Caches, open-field supply drops claimed "before scavenging hordes wild creatures overrun them." Two boss encounters, the Lost King and the Lost Queen, cap the story arc — the wiki lists them without a fight-by-fight breakdown, so treat that mechanical detail as its own research topic.
New progression comes through a Skill Tree, "a new style of progression for a new skill system": earn points by hitting Milestones and spend them across distinct trees toward specializing as a creature master, explorer, or survivor — a system deep enough for its own guide. Combat-wise, expect two enemy types that can't be tamed: Revenants ("reanimated remains of survivors and creatures reanimated by Rockwell himself... extremely aggressive to anyone and anything in their way") and Gargoyles, familiar creatures "frozen in time by the statue" and awakened by the Red Colony, untameable "due to the Lost effect." The map also adds new tameable creatures — among them Veilwyn (which later evolves into Malwyn or Solwyn) and the colossal dragon Aureliax — but the full roster and taming specifics belong to their own article.
Work Defense and Attack Outposts before spending tribute on the Lost King or Lost Queen — outpost loot and King's-favor progress are how the wiki says you advance the storyline in the first place. Treat any Revenant or Gargoyle encounter as combat only; neither is tameable per the wiki. Route early resource runs through the Hot Springs rather than the Aberrant Crash Sites — the Crash Sites are explicitly documented as toxic-sludge hazard zones, not farming ground.
Running your own ARK server
Arat Prime layers a story-progression map — Outpost Missions, favor with the Lost King, two story bosses — on top of ARK's usual survival loop, and that's easier to run at your own pace on a private server: no random players racing your tribe to a Resource Cache, no one else's raid draining a Defense Outpost's loot before you get there, and no server restart wiping progress made fighting through a Thrall stronghold. It also lets your group schedule Skill Tree Milestone grinding and boss attempts around real playtime instead of a public server's population swings.
Ready to explore Lost Colony on your own terms? Spin up your own ARK server and set the pace yourselves. Use promo code WELCOME for your first month free.
Conclusion
Lost Colony is documented as ARK's first canonical paid Expansion Pack since 2021 — a $29.99, December 19, 2025 release set on Arat Prime, a Gothic necropolis ruled by the Lost King and hemmed in by an Arctic crash zone, a bioluminescent Twilight Forest, and radioactive Aberrant Crash Sites. Getting oriented means working the three Outpost Mission types toward the Lost King's favor, treating the untameable Revenants and Gargoyles as pure combat encounters, and building up Skill Tree Milestones over time — with the deeper mechanics of that tree, the full creature roster, and the Lost King/Lost Queen boss fights each left for their own dedicated guides. Where the wiki's own Regions and Spawn Location data for the map is still blank, this guide says so rather than guessing at names or zones.