

World of Sea Battle
- 2+players
- PC
World of Sea Battle is a free-to-play open-world MMO set in the Age of Sail. Catch the wind and fire a broadside before your enemy does. Rise from a schooner to a ship of the line through PvP and PvE battles, trade, explore the Endless Sea and join guild wars for the Archipelago.
Who can play
Store (how we check facts)- Split-screen is not confirmed.
- Online on PC. How many can join is not confirmed.
- Free to play.
How it plays
Is it good
75%
Mostly positive on Steam
Steam Deck Playable
Every way to play together
Steam lists online co-op for PC. Free to play. Player counts are not confirmed yet. 75% positive of 9,500 Steam reviews.
- 2+
Quick facts
- Developer
- Thera Interactive
- Platforms
- PC
- Released
- Oct 21, 2025 on PC
- Early access
- Still in early access on Steam
- Languages
- Text in 11 languages, voices in 2
- Also needs
- World of Sea Battle Account
In these lists
Answers
- Does World of Sea Battle have couch co-op?
- No same-screen play is confirmed. The Steam listing does not include it on PC. Online play is the way to play it together.
- Do you need two copies of World of Sea Battle?
- No. It's free to play.
- One of 1,371 co-op games where one copy is enough
- Does World of Sea Battle work on Steam Deck?
- Yes, with some extra steps: Steam rates it Playable for Steam Deck.
- Is World of Sea Battle free?
- Yes, it's free to play.

















