Koei · KOEI TECMO GAMES CO., LTD.*
Uncharted Waters Online

At a glance
Genres
Play modes
- co-op mode
- multiplayer video game
Series
- Uncharted Waters
Game facts
Developers
- Koei
- KOEI TECMO GAMES CO., LTD.*
Publishers
- Koei
- Papaya Play*
Platforms
Compatibility and community reports
- Linux · Community reports · 2026-06-27*
- Community Linux compatibility tier
- Silver*
- Reports
- 10*
- Community confidence
- moderate*
- Steam Deck · 2026-06-27*
- Compatibility category
- Unknown*
System requirements
- Windows · Minimum*
- Operating system
- Windows XP SP2 or above*
- Processor alternatives
- CPU Pentium3-800MHz or above*
- Memory
- 1 GB RAM*
- Graphics alternatives
- 800×600 or above, High Color display*
- Graphics API
- Version 9.0*
- Network
- Broadband Internet connection*
- Storage
- 10 GB available space*
- Windows · Recommended memory · 2026-06-27*
- Memory
- 4 GB*
Steam version platforms
- Windows*
- Supported
- Yes*
- macOS*
- Supported
- No*
- Linux*
- Supported
- No*
Interface languages
- English*
- Full audio
- Yes*
Audio languages
- English*
Game features
- Multi-player*
- MMO*
- PvP*
- Online PvP*
- Co-op*
- Online Co-op*
- In-App Purchases*
Store genres
- Adventure*
- Massively Multiplayer*
- RPG*
- Strategy*
- Free To Play*
Screenshots



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* Provisional data