Best Multiplayer Open World Apps & Games

249+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated October 2026

If you already know Backrooms Union Multiplayer, this is the deeper bench. 249+ multiplayer open world apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Multiplayer Open World Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Backrooms Union MultiplayerBackrooms Union MultiplayerFree4.6★ (3.4K)YesYesOct 2026
2Left to Survive: Zombie GamesLeft to Survive: Zombie GamesFree4.6★ (57K)YesYesNov 2026
3OneState RP: Role Play OnlineOneState RP: Role Play OnlineFree4.2★ (26K)NoYesNov 2026
4RP Grand: Open World GameRP Grand: Open World GameFree4.4★ (2K)NoYesOct 2026
5Tomorrow: MMO Nuclear QuestTomorrow: MMO Nuclear QuestFree4.6★ (3.9K)YesYesOct 2026
6UndawnUndawnFree4.5★ (19K)NoYesNov 2026
7Tiny LegendTiny LegendFree——NoOct 2026
8Car Driving MultiplayerCar Driving MultiplayerFree4.7★ (1K)YesYesOct 2026

Top Picks for Multiplayer Open World

Backrooms Union Multiplayer#1

Backrooms Union Multiplayer by Pedro Crispim

Face the Backrooms Horror Coop
Editor's Choice
🎮 Games
4.6😐(3.4K ratings)
FreeAdsIn-App Purchases
Backrooms Union Multiplayer screenshot 1
Backrooms Union Multiplayer screenshot 2
Backrooms Union Multiplayer screenshot 3
Backrooms Union Multiplayer screenshot 4
Backrooms Union Multiplayer screenshot 5
Backrooms Union Multiplayer screenshot 6

Explore the eerie, maze-like dimensions of the Backrooms with friends or solo. Scavenge for resources, survive lurking horrors, and uncover the mysterious purpose of the Union. Each level offers new challenges, traps, and unpredictable encounters.

What We Love

  • 👍 Fun and collaborative gameplay
  • 🕹️ Good amount of horror elements

Room to Improve

  • 🐛 Items phasing through the ground
  • 🚫 Unable to use bats to kill monsters
  • 🚫 Inability to play with friends on different platforms
  • 💢 Too many ads
  • 🚫 Multiplayer not working properly
Left to Survive: Zombie Games#2

Left to Survive: Zombie Games by Pixonic Games LTD

Apocalypse multiplayer shooter
Strong Contender
🎮 Games
4.6😐(57K ratings)
FreeAdsIn-App Purchases
Left to Survive: Zombie Games screenshot 1
Left to Survive: Zombie Games screenshot 2
Left to Survive: Zombie Games screenshot 3
Left to Survive: Zombie Games screenshot 4
Left to Survive: Zombie Games screenshot 5
Left to Survive: Zombie Games screenshot 6

Engage in intense zombie combat, build and defend your base, and battle other players in this action-shooter game. Save survivors, loot resources, and face challenging zombie bosses.

What We Love

  • 🚀 Awesome possum
  • 🚀 Just absolutely awesome
  • 👍 Great game for beginners, interesting!
  • 👍 Super easy to catch on to and I absolutely love it!
  • 👍 Fun game
  • 👍 One of the good ones
  • 👍 Super fun
  • 👍 Worth it for sure
  • 👍 Very fun game
  • 👍 Genuinely one of the best mobile games I've played for years!
  • 👍 Awesome, but...
  • 👍 Good game to play
  • 👍 Fantastic game!!
  • 👍 Amazing game!
  • 👍 Brilliant!
  • 👍 Fantastic!
  • 👍 Solid graphics solid mechanics

Room to Improve

  • 🐛 Crashy
  • 💰 Pushy
  • 💰 To much pay to play
  • 💰 Wasting
  • 💰 Biased Game.... Creator or developer of this game either racist or biased
  • 💰 Money grabbing developers
  • 💰 Rigged
  • 💰 Pay pay pay upgrade upgrade to play fuск оff
  • 💰 No money no honey
  • 💰 Unfair pvp match up $10/mon Subscription!!??
  • 💰 Worst game support EVER! Steer clear!!
  • 💰 Go for it if you're rich
  • 💰 Stupid
  • 💤 Left to survive
  • 🐛 It's terrible
  • 🐛 Fake gameplay ads
  • 🐛 False advertising and lies
  • 🐛 Deceptive marketing
  • 🐛 Bugs in PVP
  • 🐛 System faults on updates
  • 🐛 Game keeps crashing
  • 🐛 It's ok but needs to be worked on
  • 🐛 Game doesn't load
  • 🐛 Piece of crap
OneState RP: Role Play Online#3

OneState RP: Role Play Online by CHILLBASE LTD

Open World Multiplayer Game
Worth Considering
🎮 Games
4.2😐(26K ratings)
FreeIn-App Purchases
#6in Games
OneState RP: Role Play Online screenshot 1
OneState RP: Role Play Online screenshot 2
OneState RP: Role Play Online screenshot 3
OneState RP: Role Play Online screenshot 4

Immerse yourself in a dynamic open-world city simulator where you define your own story. Engage in diverse careers, build businesses, customize vehicles, and interact with a vibrant community. Your choices shape your destiny in this realistic role-playing experience.

What We Love

  • 🚀 Smooth gameplay
  • 🌟 Great community
  • 👍 Immersive role-playing experience

Room to Improve

  • 💰 Expensive in-game purchases
  • 🔒 Admin abuse and corruption
  • 🐛 Frequent crashes and bugs
  • 🚫 Restrictive rules and policies

More Multiplayer Open World apps to explore

FAQ about Multiplayer Open World

What are the best multiplayer open world apps & games for iPhone?
Backrooms Union Multiplayer tops our multiplayer open world apps & games ranking as of October 2026, with a 4.6-star average from 3.4K App Store ratings, and it's free to download.
Yes — 20 of the top multiplayer open world apps & games we rank are free to download, including Backrooms Union Multiplayer and Left to Survive: Zombie Games.
Backrooms Union Multiplayer shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ multiplayer open world apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.