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Best Outer Space Games

177+ iOS apps & games curated and reviewed

4.4 avg rating
20 free apps & games
Updated May 2026

The best outer space games apps on iPhone average 4.4★ across 177+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Outer Space Games

TerraGenesis - Space Settlers#1

TerraGenesis - Space Settlers by Tilting Point LLC

Terraform Universe Planets
Editor's Choice
🎮 Games
4.6😊(32K ratings)
FreeAdsIn-App Purchases
TerraGenesis - Space Settlers screenshot 1
TerraGenesis - Space Settlers screenshot 2
TerraGenesis - Space Settlers screenshot 3
TerraGenesis - Space Settlers screenshot 4
TerraGenesis - Space Settlers screenshot 5
TerraGenesis - Space Settlers screenshot 6

TerraGenesis - Space Settlers allows you to terraform and build planets using real NASA science. Join factions, create habitats, manage resources, and explore new worlds in this immersive idle planet building simulator. If you love astronomy or resource management games, download and start terraforming today!

What We Love

  • 🚀 Awesome and engaging
  • 👍 Perfectly engaging game
  • 👍 Incredibly addictive in a good way
  • 👍 Beautiful and pleasing graphics

Room to Improve

  • 🐛 Biosphere bugs
  • 🐛 Crashes and performance issues
  • 🐛 Terraforming progress resets unexpectedly
Alien Invasion: RPG Idle Space#2

Alien Invasion: RPG Idle Space by CRAZY LABS BY TABTALE , G.P.

Spider evolution alien games!
Strong Contender
🎮 Games
4.7😐(1.1K ratings)
FreeAdsIn-App Purchases
Alien Invasion: RPG Idle Space screenshot 1
Alien Invasion: RPG Idle Space screenshot 2
Alien Invasion: RPG Idle Space screenshot 3
Alien Invasion: RPG Idle Space screenshot 4
Alien Invasion: RPG Idle Space screenshot 5
Alien Invasion: RPG Idle Space screenshot 6

In this RPG idle game, command an alien to defeat, evolve, and dominate by eating humans to grow its army. Face powerful bosses, evolve your alien, crush waves of enemies, and upgrade abilities to dominate in epic battles and unlock new locations. Download now to assert extraterrestrial dominance!

What We Love

  • 🚀 No forced ads
  • 🚀 Optional ads for rewards
  • 👍 Addictive gameplay
  • 👍 Fun concept

Room to Improve

  • 🐛 Bugs and glitches
  • 🔋 Game heats up device
  • 💰 Expensive subscription
Pocket Galaxy: Gravity Sandbox#3

Pocket Galaxy: Gravity Sandbox by Pocket Labs UK

Universe Space Simulation Game
Worth Considering
🎮 Games
4.6😊(25K ratings)
FreeAds
Pocket Galaxy: Gravity Sandbox screenshot 1
Pocket Galaxy: Gravity Sandbox screenshot 2
Pocket Galaxy: Gravity Sandbox screenshot 3
Pocket Galaxy: Gravity Sandbox screenshot 4
Pocket Galaxy: Gravity Sandbox screenshot 5

Create your own universe and explore infinite space in a realistic physics sandbox simulation game. Customize planets, stars, and moons, and witness the effects of gravity as you build, destroy, and simulate galaxies. Experience beautiful graphics, unlock achievements, and share your universe with others.

What We Love

  • 🚀 Great game
  • 🚀 Amazing
  • 👍 Fun and entertaining
  • 👍 Realistic graphics and physics

Room to Improve

  • 🐛 Difficult to get planets into stable orbits
  • 🐛 Planets often get pulled out of habitable zones
  • 🔒 Limited number of planets/objects without watching ads

More Outer Space Games apps to explore

4
Spaceflight Simulator
Spaceflight Simulator
Spaceflight Simulator
Rocket science made simple!
Free

Explore the vast universe and build your own rockets to discover planets and moons in this space exploration game. Experience realistic physics and orbital mechanics in an open universe with no limits.

🎮 Games
(97K)
5
Solar System Planet Smash
Solar System Planet Smash
Solar System Planet Smash
planet destruction simulator
Free

Explore the planet destruction simulator where you can unleash various weapons to smash celestial bodies like Earth, Mars, Jupiter, and more. Player discretion advised due to flashing lights. Start smashing now!

🎮 Games
(192)
6
Space Frontier
Space Frontier
Space Frontier
To Mars and Beyond!
Free

Embark on a thrilling mission to Mars and beyond in this addictive physics rocket game. Launch your rocket high into orbit, earn in-game currency for upgrades, and compete with friends for the highest scores. Join the space frontier now and experience one-button gameplay with infinite replayability!

🎮 Games
(14K)
7
Rocket Star: Idle Tycoon Game
Rocket Star: Idle Tycoon Game
Rocket Star: Idle Tycoon Game
Best Space Factory Simulator
Free

Rocket Star is an idle tycoon game where you manage a space factory to build rockets, research technologies, and explore new planets. Start your quest for rocket crafting and become the next star tycoon in this free game!

🎮 Games
(3.1K)
8
Tiny Space Program
Tiny Space Program
Tiny Space Program
Shoot rockets, run your agency
Free

Embark on an interstellar journey with this app that lets you manage your own space agency, from launching rockets and building colonies to conducting research and exploring new worlds. Experience the challenges and excitement of space exploration while overseeing a variety of missions and pioneering interplanetary societies. Start your cosmic adventure today!

🎮 Games
(1.5K)
9
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Rally the Fleet,Hunt the Stars
Free

Embark on a thrilling journey in a sci-fi space strategy game where you expand your base, customize ships, engage in massive battles, and interact with interstellar forces. Join alliances, explore uncharted space, and experience realistic 3D graphics. Are you ready to carve your path in the Lagrange System? Explore more at the links below!

🎮 Games
(378)
10
Rocket Simulator Flight 3D
Rocket Simulator Flight 3D
Rocket Simulator Flight 3D
Space Ship Launch Game
Free

Experience the thrill of rocket launching and landing in a realistic space simulation game. Take control, adjust parameters, and launch your rocket to new heights. Download now and embark on an out-of-this-world journey!

🎬 Entertainment
(319)
11
Among Us!
Among Us!
Among Us!
by InnerSloth LLC
Free

Explore the space-themed game of teamwork and deception with 4-15 players online. Engage in social deduction, strategize as Crewmates to uncover Impostors, and customize your gameplay. Play across different platforms for a fun and thrilling gaming experience. Find out more at [website].

🎮 Games
(54K)
12
Galaxiga: Classic Arcade Game
Galaxiga: Classic Arcade Game
Galaxiga: Classic Arcade Game
80s Alien Space Galaxy Shooter
Free

Experience the thrill of a retro space shooter game with GALAXIGA - Classic 80s Arcade. Blast through infinite galaxy enemies, upgrade your spaceship, and compete in PvP mode for a spot on the global leaderboard. Download now for an intense nostalgic gaming experience!

🎮 Games
(1.3K)
13
RoverCraft Space Racing
RoverCraft Space Racing
RoverCraft Space Racing
Build a space car!
Free

Embark on an exciting interplanetary adventure with a customizable space rover in this crafting and racing game. Conquer steep terrain, overcome challenges, and race on 14 unique planets for free! Start exploring now!

🎮 Games
(2.9K)
14
Adventure Escape: Space Crisis
Adventure Escape: Space Crisis
Adventure Escape: Space Crisis
by Haiku Games Co
Free

Embark on a thrilling space mission in an escape game where you must uncover the mystery of a missing crew, solve puzzles, and survive to return home. Explore a futuristic space station, interact with memorable characters, and enjoy free gameplay without any registration hassles. Join the adventure now and save the station in Adventure Escape: Space Crisis!

🎮 Games
(3K)
15
Starborne: Frontiers
Starborne: Frontiers
Starborne: Frontiers
Awaiting orders, Commander!
Free
🎮 Games
(1.3K)
16
Galaxy Attack: Alien Shooter
Galaxy Attack: Alien Shooter
Galaxy Attack: Alien Shooter
Classic Space War Invasion
Free

Protect Earth from alien swarms in a challenging space shooting game. Upgrade your spacecraft, face enemies in various environments, and engage in multiplayer mode. Download now for classic space combat!

🎮 Games
(648K)
17
Hades' Star
Hades' Star
Hades' Star
Build a mighty space empire
Free

Build a powerful space empire in a dynamic galaxy with evolving gameplay in this unique online space strategy game. Colonize planets, engage in diplomacy, customize ships, and participate in various missions while interacting with other players. Join now and leave your mark on the universe!

🎮 Games
(2.9K)
18
Moon Pioneer
Moon Pioneer
Moon Pioneer
Explore the universe!
Free

Embark on a cosmic journey to explore the universe, collect resources, build factories, and discover the vast wonders of space with this innovative application! Begin your adventure today!

🎮 Games
(35K)
19
Space Trek 2150
Space Trek 2150
Space Trek 2150
A Super Starship Game
Free

Embark on an interstellar exploration in a vast universe of stars, planets, and moons with seamless and true-to-scale environments. Take command of your starship, discover new worlds, upgrade your ship, and engage in missions for points and credits. Experience the thrill of discovery without combat in this expansive space simulation adventure.

🎮 Games
(15)
20
Playground In Space
Playground In Space
Playground In Space
Explore galaxy!
Free

Embark on an interstellar adventure in a sandbox universe, creating your own cosmic stories with limitless possibilities. Craft galaxies, design structures, and explore space in an immersive sandbox experience that challenges your creativity. Dive into the vastness of space and shape your interstellar journey.

🎮 Games
(1.4K)

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