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NAMAKORIUM (ナマコリウム)
Namako (Sea cucumbers) will save the Earth—NAMAKORIUM is a chaotic, cooperative multiplayer RTS game for up to four players. Command the “cleaners of the sea” —Namako left behind by humanity and work together to clean up the polluted oceans!

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Features
Languages:
Interface Full Audio Subtitles
English ✔ ✔
Japanese ✔ ✔
Simplified Chinese ✔ ✔
Traditional Chinese ✔ ✔
Korean ✔ ✔
Content
Includes Interactive Elements

Online interactivity

Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“This is our second title to be released on Steam, following MISTROGUE.
As a newly launched game studio, we believe in releasing our games early rather than waiting until every imagined feature is complete.
By putting our work out into the world as soon as possible, we hope to gather user feedback and grow the game together with the community.”

Approximately how long will this game be in Early Access?

“We plan to complete development within six months, or at most within a year.
However, the timeline may vary depending on the performance of the Early Access version.”

How is the full version planned to differ from the Early Access version?

“While nothing is finalized yet, we plan to continue adding more content such as advanced settings, additional languages, usability improvements, new stages, new biomes, and new scenic creatures.
Future updates may also include new stage mechanics and buildings. We’re also exploring the possibility of adding new game modes distinct from the main gameplay—such as versus or time attack modes. However, all of these are still under consideration and will be decided based on player and community feedback during Early Access.

In addition, we are considering bringing the game to platforms beyond Steam, such as Nintendo Switch, for the full release and beyond.”

What is the current state of the Early Access version?

“The core mechanics and main game mode are already complete.
The base multiplayer system is fully functional, allowing players to enjoy online co-op either with friends or via random matchmaking.
We currently plan to include eight different maps, with more to be added through future updates.
There will also be over 40 types of scenic creatures to discover, and each stage will award titles based on your clear time.
Even in the Early Access version, players will be able to enjoy a rich collection system and plenty of replayability.”

Will the game be priced differently during and after Early Access?

“While no final decision has been made yet, the price of the full release may be higher than that of the Early Access version.”

How are you planning on involving the Community in your development process?

“We primarily gather feedback regarding updates through the Steam Hub.
Our development team carefully reviews all the comments and suggestions posted there.
Features that receive a large number of requests or are frequently mentioned in reviews will be considered for adjustment or improvement.
”
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This game is not yet available on Steam

Planned Release Date: January 2026

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About This Game

NAMAKORIUM is a chaotic, cooperative multiplayer RTS for up to four players.
Command the "sea cleaners"—Namakos (sea cucumbers) left behind by humanity—and clean up the polluted oceans!

Can you reclaim the beautiful sea?
It’s all up to your planning skills, your friends, and your trusty sea cucumbers.
Get ready for a frantic, action-packed ocean cleanup operation!

Organize Your Namako Operation

Command unique Namakos, gather resources, construct buildings, and clear paths—the tasks are many and time is short.
Purify all the pollution before the food runs out!
Will your strategy hold up under pressure and succeed with the team?

Unique Namakos with Special Traits

Shell Namako gathers limestone. Iron Namako is great at mining. Flame Namako and Ice Namako can survive extreme temperatures.
Use their distinct abilities to assign roles and conquer each stage together!

Restore the Ocean’s Beauty

As you decontaminate, corals bloom, sunlight shines through, and the ocean regains vibrant color.
Over 40 types of "Scenic Creatures" will begin to swim in—try to collect them all as you heal the seas!

Beware the “Blight Namako”!

During cleanup, corrupted Namako known as "Blight Namako" may suddenly appear.
They rot your food and drag the ocean back into darkness.
Team up and repel them with the mighty Namako Fusion Cannon!

Features

  • Planning x RTS Gameplay: Strategize based on map structure and control multiple cucumbers simultaneously

  • Chaotic Cooperative Play: Plans may succeed... or hilariously fail—every match brings its own story

  • Online Multiplayer: Join with friends or random players via "Friend Match" or "Random Match"

  • Over 40 Scenic Creatures: Discover real and fantasy species as you play

  • 8 Unique Stages

  • Stage Titles Based on Clear Time

  • Adorable Sea Cucumbers & a Hidden Post-Apocalyptic Worldview

More stages, gimmicks, and creatures are planned in future updates!

Guidelines for Streaming and Video Posting

  • Streaming and Video Posting: OK (Very welcome!)

  • Monetization: OK

  • Prohibited Streaming Areas: None

  • We would appreciate it if you could include a link to your Steam store page in the description.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game uses AI to generate some of its graphic assets and to assist with translation.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 or later (64-Bit)
    • Processor: i5-3570K 3.4 GHz 4 Core
    • Memory: 16 GB RAM
    • Graphics: GeForce GTX 1050 (2GB)
    • DirectX: Version 12
    • Storage: 10 GB available space
    • Additional Notes: Internet connection required for multiplayer. SSD required.
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 or later (64-Bit)
    • Processor: i9-9900K 3.6 GHz 8 Core
    • Memory: 32 GB RAM
    • Graphics: GeForce RTX 2070
    • DirectX: Version 12
    • Storage: 10 GB available space
    • Additional Notes: Internet connection required for multiplayer. SSD required.
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