Amazon Games and Smilegate RPG have confirmed a two-phase server merge for Lost Ark’s NA East and EU Central regions, with Phase 1 launching on August 26, 2026 and Phase 2 following on September 2, 2026. Several servers are being folded into consolidated worlds, and players with rosters on multiple merging servers will have those rosters combined under a detailed policy. Below is every server mapping, roster rule, and pre-merge action item you need before the first maintenance window hits.
Lost Ark 2026 Server Merge: NA East and EU Central — Complete Breakdown
Phase schedule and final server states
Phase 1 on August 26 merges the following servers:
- NA East: Nineveh → Balthorr, Luterra → Vairgrys, Brelshaza → Thaemine
- EU Central: Ortuus → Arcturus, Ratik → Elpon
Phase 2 on September 2 continues the consolidation:
- NA East: Balthorr (now carrying Nineveh) → Inanna
- EU Central: Gienah → Arcturus (now carrying Ortuus)
Once both phases are complete, the surviving servers are Inanna (Inanna + Balthorr + Nineveh), Vairgrys (Vairgrys + Luterra), and Thaemine (Thaemine + Brelshaza) on NA East, and Elpon (Elpon + Ratik) and Arcturus (Arcturus + Ortuus + Gienah) on EU Central. The developer notes that specific source and target assignments may be adjusted before each phase and will be confirmed closer to each date — check the official announcement for any updates.
What to do before August 26 — action items
The developer lists several tasks that must be completed before the first maintenance window. Missing these means losing progress or rewards outright:
- Claim all Express Event rewards. The Kazeros Challenge Express, Twilight Exchange Shop, and Mokoko Bootcamp all end on August 19 — one week before Phase 1.
- Claim all Ark Pass rewards. The current Ark Pass season closes before the merge. Unclaimed rewards are gone.
- Use Card XP. Any Card XP applied to a card that becomes a duplicate after the merge is permanently lost.
- Collect Training Camp experience. Training Camp progress resets entirely.
- Check the Auction House and Currency Exchange. All AH listings are cancelled and mailed back (claimable for 30 days). Currency Exchange registrations are cancelled with Royal Crystals or Gold refunded.
How roster merges work for dual-server players
Players with rosters on only one of the merging servers simply log in to the new server after maintenance. Players with rosters on both servers get their accounts combined under the following core rules:
- Max — the higher value between both rosters is kept (Roster Level, Engraving Effect, Ship Level, Trade Skill Level, Life Energy).
- Sum — both values are added together (Gold, Royal Crystals, Silver, Pheons, Pirate Coins, Unused Powerpasses, Stronghold Currencies).
- Union — items from both rosters are combined with duplicates removed (Card Books, Collectibles, Mounts, Skill Runes, Jukebox tracks).
- Reset — the system reverts to default (Bifrost save locations, Card Deck Presets, Friend Groups if rosters existed on both servers).
All characters from both rosters go to Universal Character Storage. Character slots reset to the default count, and any purchased additional slots are returned as Character Slot Extension Tickets. Your main character is automatically set to the highest Item Level character across the combined roster — you can change this manually after the merge.
2026-first systems and what they mean
Several systems are being merged across servers for the first time in 2026. Paradise follows the Max rule, retaining rankings and comments from the surviving Paradise ranking. Character Chronicle snapshots are recreated at first login post-merge, meaning some records — including highest Item Level reached, total trophies, shortest Guardian Raid clear time, and number of friends — will reflect the merge date rather than when those achievements originally happened. Kazeros War Map and Honor both apply the Max rule, keeping whichever server held the higher level, EXP, or honor points.
What this means for active players
If you’re sitting on Card XP, stop holding it — spend it before August 19 or it disappears on any card that gets flagged as a duplicate. The same urgency applies to Training Camp progress: collect all accumulated experience now, because there is no recovery after the reset.
Players with high-value Auction House listings should expect those to be cancelled and mailed before each phase’s maintenance window. You have 30 days from cancellation to claim them from mail, so nothing is lost if you act promptly — but watch the mail box. For dual-roster players, the Sum rule on currencies is a genuine upside: every coin type across both servers stacks into a single total, with any excess over the cap moved to Universal Storage rather than deleted.
Lost Ark’s 2026 NA East and EU Central server merges run in two phases — August 26 and September 2 — consolidating nine servers into five. Claim Express Event and Ark Pass rewards by August 19, burn Card XP, and collect Training Camp progress before the first maintenance window. Good luck in Arkesia!
