Comparison

Worm.is vs Slime.io

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

Head to head
About

Worm.is

Engage in an addictive multiplayer battle where you eat to grow and outwit opponents to become the ultimate worm. Dodge viruses, share mass with teammates, and customize your worm's style. Enjoy various game modes and private matches with friends.

Highlights
  • Multiple game modes
  • Private matches with friends
  • Eat to grow mechanics
  • Cut and conquer tactics
  • Virus avoidance
  • Customizable worm skins
  • Gear and boosts
Features
Read full description

# Crush Your Opponents or Try Slithering Your Way to the Top! ##**Warning:** This game is a highly addictive multiplayer experience! **LAG**: If you experience high latency, please open the Settings Menu and change your server location ## Become the Ultimate Worm In a realm teeming with worms, your mission is simple: eat to grow and outwit to rule. Make one wrong move, though, and you're worm chow. So, will you be the hunter or the hunted? ## Here's What's in Store: - **Various Game Modes**: Free-for-All, Random Team, and more - **Scourge Mode**: A groundbreaking, super addictive way to play - **Private Matches**: Go head-to-head with pals in private games - **Eat to Grow**: Aim to be the game's biggest worm - **Cut and Conquer**: Chop off enemy paths to take 'em down - **Virus Alert**: Dodge viruses that will slow you down and steal your mass - **Mass Sharing**: Eject mass to assist teammates - **Custom Skins**: Pimp your worm's style - **Gear and Boosts**: Arm yourself and gain gameplay advantages - **Continuous Fun**: An experience you'll relish - Most of all, have a blast while you strive for worm-world supremacy! For info and support admin@nilwave.com

About

Slime.io

Control a rolling ball to cover the most ground with slime. Collect dots to grow larger and faster, aiming to dominate the game area. It's an addictive experience focused on territorial control.

Highlights
  • Roll and slime area
  • Collect dots
  • Get bigger and faster
  • Dominate game area
  • Addictive gameplay
Read full description

Most Addictive io Game! Roll the ball and slime as much area as you can. Collect the dots to get bigger and faster! Slime the most area to win the game!

Screenshots

Worm.is3 screens
Slime.io4 screens

Verdict

The call

The clearest difference is rating: Worm.is at 4.5 against Slime.io's 3.8. Worm.is also leads on ratings volume (235 vs 6) and update cadence (every 5 days vs fortnightly). Slime.io's advantage is in-app purchases (none vs 7) and iOS requirement (8.0 vs 15.6). On price, ads 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. Worm.is sells 7 one-off in-app purchases. Slime.io asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Worm.is holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Worm.is has 235 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 81% of Worm.is's written reviews are positive against 67% of Slime.io's.

UpkeepUpdate frequency

Worm.is ships an update every 5 days, Slime.io fortnightly. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Worm.is versus Slime.io: the parameters behind the verdict, then further details
ParameterWorm.isSlime.io
PriceFreeFree
Rating4.5 (235 ratings) — better3.8 (6 ratings)
Positive reviews81.3% of reviews — better66.7% of reviews
Number of ratings235 — better6
Update frequencyEvery 5 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.68.0 — better
Further details — not scored
Size139 MB69 MB
Age rating4+4+
DeveloperFreakinware StudiosEntity3 Limited

Customer experience

Worm.is

All ratings235 ratings
Positive87.7%
Neutral3.4%
Negative8.9%
Written reviews251 reviews
Positive81.3%
Neutral5.6%
Negative13.1%

Slime.io

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Worm.is

Reported bugs

4 issues
  • Skin creation issues
  • Connectivity problems
  • Leaderboard glitches
  • Freezing during gameplay

Requested features

5 requests
  • More game modes
  • Improved chat moderation
  • Reduced ads
  • Ability to join friends
  • Progression system enhancements

Slime.io

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Worm.is

One-time7
  • 200 Coins$0.99
  • Remove ads$1.99
  • 500 Coins$1.99
Show 4 more
  • 1200 Coins$3.99
  • 4000 Coins$6.99
  • 10000 Coins$14.99
  • 20000 Coins$24.99
None

Slime.io

No in-app purchases

Questions

Is Worm.is free?
Worm.is is free to download, with in-app purchases available.
Is Slime.io free?
Slime.io is free to download, with no in-app purchases.
Which has better reviews, Worm.is or Slime.io?
Worm.is is rated higher. Worm.is averages 4.5 out of 5 from 235 ratings, while Slime.io averages 3.8 from 6 ratings.
Do Worm.is or Slime.io have ads?
Neither Worm.is nor Slime.io shows ads.
Which is updated more often, Worm.is or Slime.io?
Worm.is ships an update every 5 days, and Slime.io fortnightly. Most recently, Worm.is was updated on November 9, 2026 and Slime.io on November 2, 2026.

Other comparisons