Comparison

Nebulous.io vs slither.io

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

Head to head
About

Nebulous.io

Engage in a multiplayer game where you grow by consuming smaller entities and collecting dots. Avoid larger players while strategizing to become the biggest blob. Enjoy various game modes, customization options, and social features.

Highlights
  • Collect dots and gobble smaller players
  • Compete with up to 27 players online
  • Over 500 unlockable skins
  • Upload custom skins
  • Multiple game modes including FFA, Teams, and Capture the Flag
  • Clan system with Clan Wars
  • Offline single-player mode
Features
Read full description

Grow your blobs by collecting dots placed throughout the game or gobbling up smaller players. Avoid bigger players attempting to do the same. Compete with other players to become the biggest blob in the universe! Features: ◆ Find groups, play with friends, and join a clan! ◆ Over 500 skins with unique ways to unlock them and more coming! ◆ NEW: Special Power Ups in the Shop! ◆ Upload your own custom skin for other players to see! ◆ Online Multiplayer (up to 27 players per game) ◆ Offline Single-player ◆ FFA, Timed FFA, Teams, Timed Teams, Capture the Flag, Survival, and Soccer Mode! ◆ Mayhem Mode! ◆ XP, Achievements, and Stats! ◆ Clan System with Clan Wars! ◆ Feeling competitive? Try the Arenas! ◆ Space or Grid Theme ◆ Multiple Control Schemes ◆ Server Leader Boards Tips: ◆ Eject mass into a black hole to move it ◆ After some time passes your blobs will recombine ◆ Seek refuge from large players inside black holes if you are small ◆ Black holes will break up or shrink your blobs if you are large ◆ Split up when being chased for a small speed boost

About

slither.io

Compete against other players in a multiplayer game where you grow by consuming the remains of defeated opponents. Outmaneuver larger players to win and become the longest slither.

Highlights
  • Online multiplayer gameplay
  • Grow by consuming player remains
  • Outmaneuver opponents
  • Become the longest slither
  • Simple controls
Features
Read full description

Play against other people online! Can you become the longest slither of the day? In slither.io, even if you're tiny, you have a chance to win. If you're skilled or lucky, you can swerve in front of a much larger player to defeat them! Boop or be booped! If your head touches another player, you will explode and die. But if other players run into YOU, then THEY will explode and you can eat their remains! slither.io is the real online multiplayer slithering game! Are you a snake or a worm? You're a slither! Download now and start slithering!

Screenshots

Nebulous.io4 screens
slither.io4 screens

Verdict

The call

The clearest difference is ads: slither.io at none against Nebulous.io's shown. slither.io also leads on chart position (#51 vs unranked) and iOS requirement (12.0 vs 14.0). Nebulous.io's advantage is rating (4.1 vs 3.8). On price, review sentiment, ratings volume and update cadence 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. Nebulous.io sells 12 one-off in-app purchases and slither.io sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Nebulous.io holds the better App Store score, 4.1 against 3.8. Both are backed by a comparable volume of ratings — 2.6K and 3K respectively. Written reviews split almost evenly too, at 54% and 55% positive.

UpkeepUpdate frequency

Nebulous.io ships an update every 2 weeks, slither.io weekly. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 7 level
Nebulous.io versus slither.io: the parameters behind the verdict, then further details
ParameterNebulous.ioslither.io
PriceFreeFree
Rating4.1 (2.6K ratings) — better3.8 (3K ratings)
Positive reviews54.1% of reviews55.0% of reviews — better
Number of ratings2.6K3K — better
Update frequencyEvery 2 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#51 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size71 MB75 MB
Age rating9+4+
DeveloperSimplicial Software, LLCLowtech Studios LLC

Customer experience

Nebulous.io

All ratings2,636 ratings
Positive77.5%
Neutral4.2%
Negative18.2%
Written reviews702 reviews
Positive54.1%
Neutral12.4%
Negative33.5%

slither.io

All ratings3,030 ratings
Positive66.9%
Neutral6.6%
Negative26.6%
Written reviews1,850 reviews
Positive55.0%
Neutral11.2%
Negative33.8%

User reviews

Nebulous.io

From 2.6K App Store ratings

What we love

  • 🎮 Engaging gameplay
  • 🕹️ Fun game modes
  • 🤝 Good for playing with friends
  • 💎 Addictive and enjoyable
  • 🕰️ Nostalgic for long-time players

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🔧 Lack of updates and fixes for iOS users
  • 🕹️ Unbalanced gameplay mechanics
  • 🤝 Issues with teaming and cheating
  • 💰 Expensive in-app purchases

slither.io

From 3K App Store ratings

What we love

  • 🚀 Addictive gameplay
  • 👍 Customizable snake skins
  • 🚀 Offline mode available
  • 👍 No ads (if paid)

Room to improve

  • 🐛 Frequent lags and freezes
  • 🐛 Glitches causing unfair deaths
  • 🐛 Inability to control snake movements
  • 🐛 Inappropriate player names
  • 💰 Ads and in-app purchases

Bugs and requests

Nebulous.io

Reported bugs

5 issues
  • Progression resets and lost account data
  • Connectivity issues and server problems
  • Glitches with power-ups and abilities
  • Inconsistent performance on iOS devices
  • Inability to change name or settings

Requested features

5 requests
  • Improved matchmaking system
  • More game modes and customization options
  • Ability to upload custom skins on iOS
  • Better community features and moderation
  • Reduced in-app purchase costs

slither.io

Reported bugs

4 issues
  • Screen freezing during gameplay
  • Inability to change skins
  • Forced speed boosts causing crashes
  • Inconsistent performance across devices

Requested features

6 requests
  • Ability to play with friends
  • More customization options
  • Pause button for offline mode
  • Endless game board
  • Improved AI difficulty
Show 1 more
  • Prevent other players from stealing kills

In-app purchases

12 purchases

Nebulous.io

One-time12
  • 2,000 Plasma$0.49
  • One Spin$0.99
  • 5,000 Plasma$0.99
Show 9 more
  • 10,000 Plasma$1.49
  • 3,000 Plasma$1.99
  • Plasma Boost 7 Days$2.99
  • Remove Ads2 variants$2.99
  • 10,000 Plasma$4.99
  • 50,000 Plasma$4.99
  • 100,000 Plasma$7.49
  • 25,000 Plasma$9.99
  • 500,000 Plasma$24.99
1 purchases

slither.io

One-time1
  • Remove Ads$3.99

Questions

Is Nebulous.io free?
Nebulous.io is free to download, with in-app purchases available.
Is slither.io free?
slither.io is free to download, with in-app purchases available.
Which has better reviews, Nebulous.io or slither.io?
Nebulous.io is rated higher. Nebulous.io averages 4.1 out of 5 from 2.6K ratings, while slither.io averages 3.8 from 3K ratings.
Do Nebulous.io or slither.io have ads?
Nebulous.io shows ads; slither.io does not.
Which is updated more often, Nebulous.io or slither.io?
Nebulous.io ships an update every 2 weeks, and slither.io weekly. Most recently, Nebulous.io was updated on October 1, 2026 and slither.io on October 2, 2026.

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