: A major free update adding local co-op and a combat overhaul.
Sea of Stars is not available as a completely "free" game for permanent ownership, but you can play it at no extra cost if you have certain subscription services or want to try the official demo. Official Ways to Play for Free or via Subscription Sea Of Stars Download Free PC Game
: Sea of Stars is included in the Xbox Game Pass library for PC and Console. Subscribers can download and play the full game as part of their monthly membership. : A major free update adding local co-op
: A free story DLC released in May 2025 that adds roughly 5–8 hours of new content, including new areas and a playable class. Game Overview Sea of Stars on Steam Subscribers can download and play the full game
: For those who own the base game, developer Sabotage Studio has released significant content updates at no additional cost:
Note: Recent reports indicate it may be leaving the service on August 31, 2025.