World of Sea Battle

Open-world sailing MMO where guilds fight for control of ports

Thera Interactive · Released Oct 21, 2025 · Early Access

Action Massively Multiplayer RPG Free To Play

Third-party account required

Reviews: Mostly Positive; 75% of 9,670
Recent reviews: Mostly Positive; 70% of 465 in 30 days
Players: 2,077; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 5 days ago; Oct 23, 2026
Minimum PC: GeForce GTX 460; 2 GB RAM · 2 GB disk; Full requirements

What is World of Sea Battle?

A free-to-play Early Access game set in the Age of Sail. You command and upgrade historical ships, maneuver with the wind, fire different ammunition types, and board enemy vessels. Between battles, you explore a seamless archipelago, haul cargo, fish, and craft goods to sell to other players.

For you if...

+you enjoy choosing your own goals in a sandbox

Not for you if...

−you want fast progression without repetitive tasks

What players say

75% of 9,670 reviews are positive · 70% of 465 in the last 30 days

Players praise the ship battles and sailing with friends. Recent reviewers say event changes push spending and undermine progress, and that developers ignore feedback. Uneven moderation is another recurring complaint.

Screenshots and trailer

World of Sea Battle system requirements

Minimum: GeForce GTX 460, 2 GB RAM, 2 GB of disk space.

As published by the developer.

Can my PC run World of Sea Battle?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS: 64 bit Windows 8 and above
Processor: Intel Core i5-4570 3.2 GHz or AMD Phenom(tm) II X4 B60 3.3 GHz
Graphics: GeForce GTX 460 1GB or AMD Radeon HD 6850 1GB (must support shader 5 model)
Memory: 2 GB RAM
Storage: 2 GB available space
DirectX: Version 9.0c

Does World of Sea Battle have co-op or multiplayer?

Yes: co-op online; PvP online; MMO. There is no single-player mode.

Does World of Sea Battle run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Third-party account: World of Sea Battle Account (Supports Linking to Steam Account)
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 64
Steam features: Family Sharing, In-app purchases
Languages: Full audio: English, Russian. Text only: German, French, Spanish - Latin America, Japanese, Korean, Polish, Simplified Chinese, Traditional Chinese, Turkish.

Does World of Sea Battle use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam