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World of Sea Battle

World of Sea Battle

Set sail in World of Sea Battle, an action-packed open-world MMO in the Golden Age of Sail! Command historic ships, battle in PvP & PvE, shape the economy, and engage in territorial guild wars in your quest for glory across the high seas!

Released Oct 21, 2025 Developer Thera Interactive Platforms Windows Early AccessMassively MultiplayerOpen WorldPiratesNaval Combat
View on Steam ↗ Free (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

75.4%positive8,918 reviews
Recommended · 1 found this helpful

“I love the graphics and depth it has with the trade systems. Not so bad with the pay to win, where most things you buy you find in-game except for gold coins which is the shops currency but even that appears in quests and special events. The ships are well balanced and in groups…”

— a player, Steam review · 609 hrs played
Recommended · 1 found this helpful

“Soon as I joined, everyone on the world chat said this was an EvE player's retirement home, and I agree. If you're like me, who played ~600 hours of EvE and didn't understand a single thing nor progressed very far, then this game is for you. Very lovely :)”

— a player, Steam review · 92 hrs played
Not recommended · 23 found this helpful

“nice on the surface but its way to grindy pay to win and some of the most toxic players i have ever seen”

— a player, Steam review · 36 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

5,439all-time peak
0 2.5k 5k 2026 3.2k avg · Mar 2026

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

64achievements
1.5%median completion
0.2%rarest: Longhorn's Story
19.4% of players 14.6% of players 12.6% of players 12.0% of players 11.7% of players 7.8% of players 7.3% of players 6.5% of players 6.2% of players 5.8% of players 5.7% of players 4.9% of players 4.9% of players 4.5% of players 4.3% of players 3.8% of players 3.7% of players 3.6% of players 3.3% of players 2.8% of players 2.6% of players 2.5% of players 2.5% of players 2.4% of players 2.3% of players 2.1% of players 2.0% of players 1.8% of players 1.7% of players 1.6% of players 1.5% of players 1.5% of players 1.5% of players 1.5% of players 1.4% of players 1.3% of players 1.3% of players 1.3% of players 1.2% of players 1.0% of players 1.0% of players 1.0% of players 1.0% of players 0.9% of players 0.8% of players 0.8% of players 0.7% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.5% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 0.3% of players 0.3% of players 0.3% of players 0.3% of players 19.4% 0% most earned rarest
Almost everyone has
19.4%Treasure Hunter — Collect 4 items at sea in less than a minute
14.6%Medal of Mastery — x2 experience for sinking an NPS with twice the durability of your ship
12.6%First Blood — Sink the first ship in PvP
Rarest badges of honor
0.2%Longhorn's Story — Collect all discoveries from Arthur Longhorn's story.
0.3%Weapon Collection — Complete the entire weapon collection.
0.3%Recruiter — Invite 30 captains to the game

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 22, 2026
Ship Elite Status

Elite Status: Develop Your Favorite Ships Captains! Each of us has a ship we want to play again and again. Maybe it is not the most powerful or the fastest. But at some point, you get used to it, find

Sep 17, 2026
Q&A

Captains! This time, we decided to slightly change the format of our “Q&A”. Instead of a long list of short answers, we’ll take the most relevant questions one at a time — but in more detail . One of

Sep 15, 2026
Hotfix

There’s also a new in-game chat survey waiting for you in the Logbook. Tell us what makes the chat difficult to use and what features you feel are missing. Take a few minutes to complete the survey an

Sep 05, 2026
Hotfix

This patch does not change the version number. Fair winds and successful battles!

Sep 03, 2026
Hotfix

We made a number of internal improvements and fixes to improve the stability of our game services. Fair winds and successful battles!

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresAction, Massively Multiplayer, RPG, Free To Play, Early Access
Player tagsEarly Access · Massively Multiplayer · Open World · Pirates · Naval Combat · Action · Exploration · Sailing · Sandbox · PvP · PvE · 3D (Steam store community voting)
FeaturesMulti-player · MMO · PvP · Online PvP · Co-op · Online Co-op · Steam Achievements · In-App Purchases
LanguagesEnglish * , German, Russian * , French, Spanish - Latin America, Japanese, Korean, Polish, Simplified Chinese, Traditional Chinese, Turkish *
Achievements64
Official sitehttps://www.worldofseabattle.com/en?f=steam
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system 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 Memory: 2 GB RAM Graphics: GeForce GTX 460 1GB or AMD Radeon HD 6850 1GB (must support shader 5 model) DirectX: Version 9.0c Network: Broadband Internet connection Storage: 2 GB available space