Arc Raiders’ Riven Tides Adds Coastal Map, New Boss April 28

The Riven Tides update for Arc Raiders will introduce a coastal map, a new large ARC enemy widely expected to be the Bishop, a major map condition and an expedition window. The update is scheduled to go live April 28, 2026 at 2:00 AM PDT (5:00 AM EDT, 10:00 AM BST).

The developer confirmed the features and timing in its roadmap released earlier this year. Riven Tides follows the Flashpoint update from March 2026 and is listed in the roadmap as the largest content update planned for the game to date. The release will mark the departure cycle for the third Arc Raiders Expedition.

The new map is described as the studio’s first coastal environment for the title. Community discussion points to the new large ARC enemy being the Bishop, though the developer has not issued a formal name. The major map condition is outlined in the roadmap as a prominent new effect that will change the map’s play environment; technical details and gameplay effects have not been provided.

The roadmap also lists additional content tied to Riven Tides, including new quests, new items, cosmetic additions and quality-of-life adjustments. The developer has not published specifics on enemy behavior, loot changes or the precise cosmetic offerings ahead of the update.

Players should plan for server downtime around the posted start time and look for full patch notes from the developer before launch. The studio has indicated more information may follow as the release date approaches.