Is Uncharted Waters Online co-op?

Yes, Uncharted Waters Online supports co-op.

Does Uncharted Waters Online have PvP?

Yes, Uncharted Waters Online has player-versus-player modes.

Do we both need to own Uncharted Waters Online to play together?

Yes. Uncharted Waters Online is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play Uncharted Waters Online?

About 28 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Strategy › Real-time strategy

Is Uncharted Waters Online multiplayer or co-op?

Yes — co-op and PvP. Uncharted Waters Online is a real-time strategy game released in 2018, 69% positive on Steam (401 reviews), with 28 playing right now. Free on Steam.

Co-opPvPStrategy · Real-time strategy

Discover yourself in the “Age of Discovery” where you’ll sail out into the uncharted waters! Discover real historical artifacts and mystical legends! Start a…

How Uncharted Waters Online plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Not listed on Steam
MMO: Yes

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: Free to Play, Massively Multiplayer, RPG, Adventure, Strategy, Pirates, Sailing, Open World

Do you and a friend both own Uncharted Waters Online?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Uncharted Waters Online is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

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Age of Empires IV: Anniversary Edition

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Age of Empires III: Definitive Edition

Real-time strategy · 85% positive on Steam (48,342 reviews) · 3,016 playing right now

Foxhole

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STAR WARS™ Empire at War - Gold Pack

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Tired of Uncharted Waters Online? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Uncharted Waters Online co-op?: Yes, Uncharted Waters Online supports co-op.
Does Uncharted Waters Online have PvP?: Yes, Uncharted Waters Online has player-versus-player modes.
Do we both need to own Uncharted Waters Online to play together?: Yes. Uncharted Waters Online is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play Uncharted Waters Online?: About 28 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass