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Release: Coming Soon
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About Marimo-VS-IAS: Our Friends

Marimo-VS-IAS: Our Friends - about the game

Evolve!

For our friends――

A 3D action game where marimo algae fight for survival against invading alien species in a lake that has become part of the sea!

● Overview ●

Save Marimo!

Strengthen your marimo and wipe out the threats closing in on the Marimo――

  • Story Mode

    Stage-based game mode.
    Take on around 60 different missions, including defeating enemies, sabotaging their operations, and rescuing or defending your allies.
    Challenge the hard-mode versions of each mission and aim to become the ultimate marimo!

  • Marimo Upgrades
    Customize your marimo’s abilities freely using items obtained from rewards and exploration!
    Adapting your upgrades to each situation is the key to overcoming powerful enemies and high-difficulty missions...

  • Field Exploration
    Freely explore the lake to discover hidden items, information, side quests, and lurking dangers.
    The environment may even change as the story progresses…

  • Unravel the Mystery in an Optional Sub-Story

    How did the Marimo survive in waters where the environment changed so drastically?
    How did the lake end up becoming part of the sea?
    Explore the lake and uncover the truth!

● Story ●

The marimo of Lake Akan once lived peaceful lives.
However, rising water temperatures and a lack of sunlight drastically reduced their numbers. With help from humans, they recovered and began to thrive again.

But after many years, the lake suddenly turned into seawater, wiping out much of its ecosystem. Invading species from the sea threatened the survivors, pushing the marimo to the brink of extinction.

Then, mysterious glowing particles appeared underwater, driving creatures into a frenzy… and granting new power to the remaining marimo.

(This story shares the same world and timeline as the previous title, "Marimo-VS-IAS," but can be fully enjoyed on its own.)

Interface:
EnglishJapanese
Subtitles:
EnglishJapanese

Age rating

Unavailable

System requirements

Minimum:

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel Core  i7‑8750H
    • Memory: 16 GB RAM
    • Graphics: NVIDIA GeForce MX150

Recommended:

    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 11
    • Memory: 32 GB RAM
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FAQ

8 questions

Before you start looking for a cheap Marimo-VS-IAS: Our Friends CD Key, take a moment to check the essentials. Developed by JoyPlot. Published by JoyPlot. PC released date: Coming Soon. Genres: Action, Indie, RPG, Adventure. Categories: Family Sharing, Single-player, Steam Achievements, Full controller support, Custom Volume Controls, Playable without Timed Input, Stereo Sound, Camera Comfort, Adjustable Difficulty.

Q Can I play Marimo-VS-IAS: Our Friends on Steam Deck?

No, not right now. Valve marks Marimo-VS-IAS: Our Friends as Steam Deck Unsupported, so it won't launch via Proton at this time. Keep an eye on XD.deals - we track Proton breakthroughs and community fixes, and we'll flag it the moment there's a working way to play Marimo-VS-IAS: Our Friends on Steam Deck.

Yes. A Marimo-VS-IAS: Our Friends Steam version exists. Pick any offer tagged Steam Key on XD.deals, redeem it in the desktop client, and play Marimo-VS-IAS: Our Friends on Steam PC.

Yes. Once your Steam key is redeemed, you can launch Marimo-VS-IAS: Our Friends in Offline Mode via Steam. Your save files will sync the next time you go online.

Yes, you can buy a Marimo-VS-IAS: Our Friends Steam Key directly on the Steam Store. At XD.deals, we aggregate all available Steam DRM offers so you can compare cheap Marimo-VS-IAS: Our Friends steam deals in one place.

At the moment we don't have any live offers for Marimo-VS-IAS: Our Friends - both official stores ({1}) and keyshops ({2}) show the game as sold out or temporarily unavailable…

With XD.deals, PC gamers can instantly see where to buy a cheap Marimo-VS-IAS: Our Friends PC Steam key. Our real-time price-comparison engine and curated coupon database track every official store and trusted keyshop so you dont have to. Right now we detect this game in {1} live offers from stores and keyshops.

Not yet. There's no Marimo-VS-IAS: Our Friends Steam listing right now, so you can't buy Marimo-VS-IAS: Our Friends on Steam today. Instead, browse the other Marimo-VS-IAS: Our Friends offers on XD.deals - official stores and keyshops often provide DRM-free or launcher-key versions you can play while waiting for a future Steam release.

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