AtomTeam's ATOM RPG is receiving a large anniversary update to the original game while ATOM RPG 2 sits in closed alpha ahead of a December 2026 Steam Early Access release. A co-op feature planned for a later update will also appear in the sequel.
AtomTeam's ATOM RPG covers two projects at once: the original post-apocalyptic CRPG, which the studio is updating, and the sequel ATOM RPG 2, which began its closed alpha test on August 9, 2026. The alpha is available to Kickstarter Alpha Backers and runs under the codename Codename: Salvation. It takes place in a 1km x 1km area with more zones planned, and it focuses on co-op PvE while solo play remains central. ATOM RPG 2 is set for Steam Early Access in December 2026, with full release in 2027.
On October 7, 2026, AtomTeam outlined a large-scale update to the original ATOM RPG tied to the studio's 10th anniversary that month. Update 1.2.1 adds weapons from ATOM RPG Trudograd, weapon customization, combat and companion AI improvements, plus interface and visual updates. A later update, 1.2.5, adds co-op play, which will also appear in ATOM RPG 2. The story DLC Plague Island is scheduled for release on Steam in October.
The two strands connect through co-op. The feature planned for the original game's 1.2.5 update is also headed to the sequel, meaning AtomTeam is building the same mode into both the 2026-era original and the upcoming ATOM RPG 2.
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AtomTeam released Plague Island, a story expansion for the post-apocalyptic RPG ATOM RPG, on Steam for 1,350 yen with a 10 percent discount through October 23. The DLC adds 17 locations, more than 30 characters, and over 12 quest lines on an island hit by a mysterious disease. A 1.2.1 update ships alongside it with fixes and new gameplay features.
AtomTeam will release a large-scale update to the original ATOM RPG to mark the studio's 10th anniversary in October. Update 1.2.1 adds weapons from ATOM RPG Trudograd, weapon customization, combat and companion AI improvements, plus interface and visual updates. Update 1.2.5, planned for later, adds co-op play, which will also appear in ATOM RPG 2. The story DLC Plague Island is scheduled for release on Steam in October.
AtomTeam has started the closed alpha test for post-apocalyptic CRPG ATOM RPG 2, available to Kickstarter Alpha Backers. The test, codenamed Codename: Salvation, runs in a 1km x 1km area with more zones planned. The focus is co-op PvE, though solo play remains central. The game hits Steam Early Access in December 2026, with full release in 2027.