Comparison

Super Marimo Depth vs Silent Waters

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Super Marimo Depth

Embark on a deep sea adventure to nurture a growing marimo as it descends. Feed it nutritious seaweed, avoid dangerous debris, and challenge yourself to grow it as large and as deep as possible.

Highlights
  • Guide sinking marimo
  • Feed marimo seaweed for growth
  • Avoid underwater debris
  • Compete on marimo size
  • Compete on descent depth
  • Choose control style
Features
Read full description

"Super Marimo Depth" is a deep sea adventure game where players help raise marimo as it sinks into the sea - showering it with affection to help it grow and avoiding obstacles as it delves deeper and deeper. When game-play starts, marimo plops into the sea and starts sinking. Let it go and it will go into a free fall, so players have to help marimo avoid debris - bump into anything and it's game over. As you go along, take in the mozuku (a kind of seaweed) that floats about under the sea to help marimo grow. Marimo's main source of nutrition is mozuku, so have the marimo eat a lot of it. Along the way, things resembling brown marimo will appear - these are hairballs. You can knock these down by bumping into them. Breaking open a hairball will unleash a load of mozuku. Take these in to help grow marimo. In this way, you compete over the following: ・How big can you grow the marimo? ・How deep into the sea can you make marimo go? You can choose from the following two control styles, according to your preference: ・Using the touch and slide functions of the screen ・Angling the device back and forth.

About

Silent Waters

Explore an abandoned municipal pool in this horror escape game. Navigate liminal spaces, collect items, and evade a mysterious monster to find the exit. Experience a Dreamcore-inspired adventure with a sci-fi twist.

Highlights
  • Horror escape gameplay
  • Dreamcore aesthetic
  • Liminal Space exploration
  • Item collection
  • Monster evasion
  • Virtual joystick controls
Features
Read full description

About operation on smartphone -> 【View Mode: Landscape only】 【Player operation】 Move: Left hand - operate the virtual joy stick at the bottom left of the screen.(front, back, left and right) Gaze: Right hand - Drag any place on the screen.(up, down, left and right) Get items while running around the facility so as not to be caught by the monster. If you can have 6 swim-ring model items... Now, be careful not to be caught by the monster and hurry to the exit. ~*~* This is a horror escape game. A scary Dreamcore experience that unfolds in an abandoned municipal pool. Run around Liminal Space. A mysterious monster is waiting in the Back Room. In a sense, this may be a science fiction near-future story.

Screenshots

Super Marimo Depth4 screens
Silent Waters4 screens

Verdict

The call

The clearest difference is ads: Super Marimo Depth at none against Silent Waters's shown. Super Marimo Depth also leads on review sentiment (100% vs 79%) and monetization model (free vs ad-supported). Silent Waters's advantage is update cadence (every 10 days vs every 6 months) and ratings volume (7 vs 1). On price, rating, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Super Marimo Depth against 5.0 for Silent Waters. That said, the two scores are not equally well evidenced: Silent Waters has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 100% of Super Marimo Depth's written reviews are positive against 79% of Silent Waters's.

UpkeepUpdate frequency

Super Marimo Depth ships an update every 6 months, Silent Waters every 10 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Super Marimo Depth versus Silent Waters: the parameters behind the verdict, then further details
ParameterSuper Marimo DepthSilent Waters
PriceFreeFree
Rating5.0 (1 ratings)5.0 (7 ratings)
Positive reviews100.0% of reviews — better79.2% of reviews
Number of ratings17 — better
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.1 — better12.0
Further details — not scored
Size124 MB184 MB
Age rating4+12+
DeveloperTakemi MatsumotoCogiMachine

Customer experience

Super Marimo Depth

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Silent Waters

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews24 reviews
Positive79.2%
Neutral8.3%
Negative12.5%

In-app purchases

None

Super Marimo Depth

No in-app purchases

None

Silent Waters

No in-app purchases

Questions

Is Super Marimo Depth free?
Super Marimo Depth is free to download, with no in-app purchases.
Is Silent Waters free?
Silent Waters is free to download, with no in-app purchases.
Which has better reviews, Super Marimo Depth or Silent Waters?
Super Marimo Depth and Silent Waters are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.
Do Super Marimo Depth or Silent Waters have ads?
Silent Waters shows ads; Super Marimo Depth does not.
Which is updated more often, Super Marimo Depth or Silent Waters?
Super Marimo Depth ships an update every 6 months, and Silent Waters every 10 days. Most recently, Super Marimo Depth was updated on November 1, 2026 and Silent Waters on October 30, 2026.

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