Comparison

MO vs ABYSS Deep Light

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

Head to head
About

MO

Embark on a side-scrolling adventure in a dark, abandoned laboratory. Solve intricate puzzles and engage in strategic combat using unique abilities to uncover the truth behind a sinister environmental disaster. Experience a visually stunning pixel art world with an emotionally resonant soundtrack.

Highlights
  • Side-scrolling action-puzzler
  • 360-degree gameplay
  • Surface-sticking abilities
  • Mind-reading and monster control
  • Exquisite pixel art
  • Emotionally moving soundtrack
Features
Read full description

A side-scrolling, action-puzzler with "Very Positive" reviews on Steam. Come adventure and explore on the soon to be released mobile version. ▶Uncover the truth hidden in the sinister shadows of this ghastly environment Awakening inside a dark, humid, and abandoned laboratory, MO discovers that it not only has to face an extremely hostile and sinister environment, but also humans who, having been taken over by alien parasitic plants, are now stuck in an endless limbo between death and rebirth. Who caused this disaster? And on this path to solve the riddle of MO's existence, what sorts of trials and tribulations lie ahead? ▶Clear quests with intertwining puzzles using strategic battle skills 360 degree gameplay that combines action and puzzle-solving. Use MO's ability to stick on surfaces to get past tricky traps, read the minds of monsters, control them like a parasite, and dash past danger as you fly through the air. ▶Exceptionally unique environmental design MO has an exquisite pixel art that is both adorable yet dark, giving the game a full-bodied sci-fi atmosphere. Besides fitting the storyline perfectly, the amazing aesthetic effects are a constant visual feast for players as they adventure onward. ▶A soundtrack that is elegant and emotionally moving The game's theme song has been carefully crafted to express the story of MO's adventure, while the background music and sound effects for each quest fit perfectly with each environment. ▶Collaborating to create a moving masterpiece An exceptional masterpiece, developed by Archpray Inc. and produced by Rayark Inc.

About

ABYSS Deep Light

Read full description

ABYSS – Deep Light In total darkness, you are the last spark of light. Dive ever deeper into the abyss and bring the light back. STAND STILL TO SHINE Hold still and your submarine lights up, revealing the creatures of the deep and opening fire — but it drains your energy. Move, and you stay hidden in the dark and recharge. This rhythm of shining and hiding is the heart of ABYSS. OXYGEN IS YOUR CLOCK Your air runs out constantly. Collect bubbles and surface in time — running empty is deadly. THE DEEP PASSAGE Narrow rock shafts where currents pull at your boat. Steer through sluggish inertia, dodge the walls, gather light and air — and choose the right route. EVER DEEPER, EVER STRANGER Layer by layer the deep grows darker and more dangerous. New guardians awaken, new creatures lurk — until something ancient waits at the very bottom: the Source of the darkness. ONE REPAIR KIT You receive exactly one emergency rescue. Save it — use it too early and reaching the end becomes almost impossible. REPUTATION & RANK Every enemy raises your reputation; a forced surfacing lowers it. Rise from deckhand to a legend of the deep. THE SHIPYARD Trade salvage for permanent upgrades: armor, light, oxygen, propulsion. You will only reach the depths well equipped. FAIR BY DESIGN No pay-to-win. No ads. A premium game you beat with skill — not your wallet. German & English, always with subtitles.

Screenshots

MO4 screens
ABYSS Deep Light4 screens

Verdict

The call

The clearest difference is price: ABYSS Deep Light at Free against MO's $4.99. MO's advantage is iOS requirement (12.0 vs 16.0). On update cadence, ads, 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

ABYSS Deep Light is free to download; MO costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
MO versus ABYSS Deep Light: the parameters behind the verdict, then further details
ParameterMOABYSS Deep Light
Price$4.99Free — better
Rating4.6 (47 ratings) — better—
Positive reviews79.5% of reviews—
Number of ratings47 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size2.5 GB39 MB
Age rating12+9+
DeveloperRayark International LimitedCoolblack GmbH

In-app purchases

None

MO

No in-app purchases

None

ABYSS Deep Light

No in-app purchases

Questions

Is MO free?
MO costs $4.99, with no in-app purchases.
Is ABYSS Deep Light free?
ABYSS Deep Light is free to download, with no in-app purchases.
Do MO or ABYSS Deep Light have ads?
Neither MO nor ABYSS Deep Light shows ads.
Which is updated more often, MO or ABYSS Deep Light?
MO ships an update every 3 weeks, and ABYSS Deep Light every 3 weeks. Most recently, MO was updated on October 29, 2026 and ABYSS Deep Light on October 28, 2026.

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