Best Online Co-Op Games

249+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated October 2026

Looking for free online co-op games? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Online Co-Op Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Fireboy and Watergirl: OnlineFireboy and Watergirl: OnlineFree4.1★ (11K)NoYesNov 2026
2Raft® Survival: MultiplayerRaft® Survival: MultiplayerFree4.5★ (38K)YesYesNov 2026
3The Ghost - Multiplayer HorrorThe Ghost - Multiplayer HorrorFree3.9★ (4.5K)YesYesNov 2026
4Back2Back: 2 Player Co-op GameBack2Back: 2 Player Co-op GameFree4.7★ (161)NoYesNov 2026
5Coop TD: TogetherCoop TD: TogetherFree4.7★ (3.7K)YesYesNov 2026
6Plato: Fun Multiplayer GamesPlato: Fun Multiplayer GamesFree4.7★ (288K)NoYesNov 2026
7WavelengthWavelengthFree4.9★ (64K)NoYesNov 2026
8Backrooms Union MultiplayerBackrooms Union MultiplayerFree4.6★ (3.4K)YesYesNov 2026

Top Picks for Online Co-Op Games

Fireboy and Watergirl: Online#1

Fireboy and Watergirl: Online by Metin Yucel

Online 2 Multiplayer Fun Game
Editor's Choice
🎮 Games
4.1😐(11K ratings)
FreeIn-App Purchases
Fireboy and Watergirl: Online screenshot 1
Fireboy and Watergirl: Online screenshot 2
Fireboy and Watergirl: Online screenshot 3
Fireboy and Watergirl: Online screenshot 4
Fireboy and Watergirl: Online screenshot 5
Fireboy and Watergirl: Online screenshot 6

Embark on a cooperative adventure with two elemental characters to navigate challenging temples. Players must work together, with one controlling fire and the other water, to overcome obstacles and reach the exit. Collect diamonds for bonus points in this addictive online multiplayer experience.

What We Love

  • 💖 Cute characters
  • 👍 Fun gameplay
  • 🎮 Nostalgic experience
  • 🕹️ Great for multiplayer
  • 🔋 Works offline

Room to Improve

  • 🤬 Too many ads
  • 🐛 Glitches and bugs
  • 🔍 Difficult to find other players
  • 🤯 Some levels are impossible
  • 🤖 Poor communication between players
Raft® Survival: Multiplayer#2

Raft® Survival: Multiplayer by Survival Games Ltd

Survive with friends online
Strong Contender
🎮 Games
4.5😐(38K ratings)
FreeAdsIn-App Purchases
Raft® Survival: Multiplayer screenshot 1
Raft® Survival: Multiplayer screenshot 2
Raft® Survival: Multiplayer screenshot 3
Raft® Survival: Multiplayer screenshot 4
Raft® Survival: Multiplayer screenshot 5

Build and expand your dream raft with friends in this multiplayer survival game. Gather resources, craft tools and weapons, and manage hunger and thirst to stay alive. Team up with up to 10 players to explore the ocean and help each other survive.

What We Love

  • 🚀 Fun to play
  • 👍 Multiplayer aspect
  • 🚀 Smooth gameplay
  • 🚀 Good graphics

Room to Improve

  • 🐛 Bugs and glitches
  • 💰 Excessive ads
  • 💰 Expensive subscription
  • 🔒 Lack of private servers
  • 🔒 Can't kick/ban players
  • 🔒 Can't delete/move items
The Ghost - Multiplayer Horror#3

The Ghost - Multiplayer Horror by Gameplier Ltd

Online Co-op, Survival Horror
Worth Considering
🎮 Games
3.9😊(4.5K ratings)
FreeAdsIn-App Purchases
#72in Games
The Ghost - Multiplayer Horror screenshot 1
The Ghost - Multiplayer Horror screenshot 2
The Ghost - Multiplayer Horror screenshot 3
The Ghost - Multiplayer Horror screenshot 4
The Ghost - Multiplayer Horror screenshot 5
The Ghost - Multiplayer Horror screenshot 6

Team up with friends to survive terrifying haunted locations. Escape as a survivor or hunt them down as a ghost. Can you escape before it's too late?

What We Love

  • 👍 Fun multiplayer experience
  • 🚀 Engaging gameplay
  • 💡 Unique monster mechanics
  • 👍 Good for playing with friends

Room to Improve

  • 🐛 Microphone issues
  • 🐛 Bugs and glitches
  • 🐛 Difficulty balancing
  • 🐛 Matchmaking problems

More Online Co-Op Games apps to explore

FAQ about Online Co-Op Games

What are the best online co-op games for iPhone?
Fireboy and Watergirl: Online tops our online co-op games ranking as of October 2026, with a 4.1-star average from 11K App Store ratings, and it's free to download.
Yes — 20 of the top online co-op games we rank are free to download, including Fireboy and Watergirl: Online and Raft® Survival: Multiplayer.
Fireboy and Watergirl: Online has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ online co-op games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.