Best Sci-Fi Base Building Game

207+ iOS apps & games curated and reviewed

4.4 avg rating
18 free apps & games
Updated June 2026

If you already know Rivals at War, this is the deeper bench. 207+ sci-fi base building game for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Compare top Sci-Fi Base Building Game (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rivals at War: 2084Rivals at War: 2084Free4.0★ (284)YesYesMay 2026
2Block FortressBlock Fortress$1.994.6★ (1.4K)NoYesJul 2026
3Building ArcadiaBuilding ArcadiaFree4.2★ (52)YesYesJul 2026
4TapTower - Idle Building GameTapTower - Idle Building GameFree4.7★ (3K)YesYesJul 2026
5Base Defense!Base Defense!Free4.7★ (10K)YesYesJul 2026
6BuildermentBuildermentFree4.6★ (3.2K)YesYesJul 2026
7ASTROKINGS: Galactic SurvivalASTROKINGS: Galactic SurvivalFree4.3★ (1.9K)YesYesJul 2026
8Nova Empire: Space Wars MMONova Empire: Space Wars MMOFree4.3★ (5K)YesYesJul 2026

Top Picks for Sci-Fi Base Building Game

Rivals at War: 2084#1

Rivals at War: 2084 by Hothead Games

Epic TPS Shooting Game
Editor's Choice
🎮 Games
4.0(284 ratings)
FreeAdsIn-App Purchases
Rivals at War: 2084 screenshot 1
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Rivals at War: 2084 screenshot 3
Rivals at War: 2084 screenshot 4
Rivals at War: 2084 screenshot 5

Engage in epic sci-fi battles in 2084, training and equipping space marines to conquer planets. Lead your forces across a star map, challenge friends, and strategize with tactic cards to dominate the galaxy.

Block Fortress#2

Block Fortress by Foursaken Media

Build and defend your base
Strong Contender
🎮 Games
4.6😊(1.4K ratings)
$1.99In-App Purchases
Block Fortress screenshot 1
Block Fortress screenshot 2
Block Fortress screenshot 3
Block Fortress screenshot 4
Block Fortress screenshot 5

Design and construct your ultimate base, then defend it against waves of enemies. This game blends building freedom with intense first-person combat, challenging your skills as both a creator and a survivor.

What We Love

  • 🚀 Still fun a decade later
  • 👍 Great game, brings back memories
  • 💡 Awesome game, deserves more players
  • 👍 Legendary game, no ads

Room to Improve

  • 🐛 Saves not working consistently
  • 🐛 Mineral deposits run out, need more spawning
  • 🐛 Turrets don't shoot enemies
Building Arcadia#3

Building Arcadia by Papanix Ltd

Sci-fi idle city builder
Worth Considering
🎮 Games
4.2(52 ratings)
FreeAdsIn-App Purchases
Building Arcadia screenshot 1
Building Arcadia screenshot 2
Building Arcadia screenshot 3
Building Arcadia screenshot 4
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Building Arcadia screenshot 6

Build a sci-fi utopia on a new planet as the first Grand Architect. Manage resources, expand your city with futuristic buildings, and uncover ancient secrets and threats in this story-driven idle builder.

More Sci-Fi Base Building Game apps to explore

4
TapTower - Idle Building Game
TapTower - Idle Building Game
TapTower - Idle Building Game
Construct amazing skyscraper
Free

Manage your finances and make strategic decisions to construct a unique skyscraper. With each tap, improve your tower's design and materials, aiming to create the most impressive building in the city and amass a fortune.

Manage cash flowMake construction decisionsTap to improve tower
🎮 Games
(3K)
free with in-app purchases
5
Base Defense!
Base Defense!
Base Defense!
by Rollic Games
Free

Lead your community, manage resources, and defend your base from enemies. Explore new areas to rescue civilians and expand your territory. Upgrade your character and hire workers to strengthen your defenses and conquer new bases.

Base defense and expansionResource managementEnemy combat and boss battles
🎮 Games
(10K)
free with in-app purchases
6
Builderment
Builderment
Builderment
Factory Building & Automation
Free

Build and automate complex production lines on an alien planet. Harvest resources, craft items, and research new technologies to send goods back to Earth. Expand your factories and optimize your resource extraction.

Build factories on a massive scaleAutomate item craftingUse conveyor belts for transport
🎮 Games
(3.2K)
free with in-app purchases
7
ASTROKINGS: Galactic Survival
ASTROKINGS: Galactic Survival
ASTROKINGS: Galactic Survival
Command fleets, battleship war
Free

Command powerful fleets in epic space battles, manage resources, and build planetary facilities. Customize your starships and lead your alliance to conquer the galaxy in this sci-fi real-time strategy multiplayer saga.

Build and upgrade planetary facilitiesRecruit galactic heroesMine and trade space resources
🎮 Games
(1.9K)
free with in-app purchases
8
Nova Empire: Space Wars MMO
Nova Empire: Space Wars MMO
Nova Empire: Space Wars MMO
Become a Starship Commander
Free

Engage in epic galactic warfare with players worldwide in this next-generation online space strategy game. Build and customize your space station, design powerful fleets, and form alliances to conquer sectors of space. Experience real-time battles and strategic gameplay with stunning HD graphics.

Real-time galactic battlesAlliance system for sector controlFleet design and customization
🎮 Games
(5K)
free with in-app purchases
9
Block Fortress: War
Block Fortress: War
Block Fortress: War
A sci-fi block-building RTS
$1.99

Engage in strategic real-time combat within a blocky sci-fi universe. Build defenses, command diverse alien armies, and lead heroes through a vast campaign or multiplayer battles.

Block-building RTS gameplayFive unique alien racesDozens of customizable heroes
🎮 Games
(364)
free with in-app purchases
10
Project Entropy
Project Entropy
Project Entropy
Strategy & Sci-fi MMO
Free

Command a vast fleet in a sci-fi universe, exploring uncharted planets, recruiting alien lifeforms, and engaging in real-time multiplayer combat. Forge alliances, customize your forces with advanced weaponry, and rise to rule the stars.

Assemble diverse crews and fleetsCustomize heroes and vehiclesEngage in deep, dynamic combat
🎮 Games
(1.3K)
free with in-app purchases
11
Colony Attack
Colony Attack
Colony Attack
MMO Space Game & Battles
Free

Build and command your own space colony, construct a powerful fleet, and engage in epic interstellar warfare. Explore a vast universe, battle pirates or other players, and forge alliances to achieve galactic dominance.

Build spaceshipsDevelop colony buildingsAttack player and AI planets
🎮 Games
(205)
free with in-app purchases
12
TerraGenesis - Space Settlers
TerraGenesis - Space Settlers
TerraGenesis - Space Settlers
Terraform Universe Planets
Free

Simulate the terraforming of planets using real scientific principles. Cultivate life, manage resources, and build civilizations on various worlds, from our solar system to fictional planets and moons. Encounter alien life and defend your settlements from cosmic threats.

Idle planet building simulatorReal science from NASATerraform planets and moons
🎮 Games
(32K)
free with in-app purchases
13
Galaxy Control 3D
Galaxy Control 3D
Galaxy Control 3D
Sci-Fi MMO: Base War Strategy
Free

Engage in epic space combat strategy by building and defending your base. Command a diverse army of ground and air units, gather resources, and battle millions of players worldwide to dominate the galaxy. Features stunning 3D graphics and a challenging campaign mode.

Next-generation 3D graphicsBase building and defenseResource gathering
🎮 Games
(866)
free with in-app purchases
14
Build Up!!
Build Up!!
Build Up!!
Building towers!
Free

Construct your tower as tall as possible by strategically placing building nodes. Collect more nodes as you ascend to reach crucial checkpoints and achieve new heights.

Build structures highGather building nodesReach checkpoints
🎮 Games
(14K)
free with in-app purchases
15
Skyscraper 4D
Skyscraper 4D
Skyscraper 4D
Realistic Tower Building Game
Free

Design and construct complex, realistic skyscrapers in an open-world sandbox. Take on the roles of architect, engineer, and developer to build your real estate empire. Enjoy total design control, from building shape to interior details, with automated tedious tasks.

Open world sandbox constructionTotal design control over building aspectsIntuitive floorplan and mirroring tools
🎮 Games
(1.1K)
free with in-app purchases
16
Tower Craft 3D - Idle Building
Tower Craft 3D - Idle Building
Tower Craft 3D - Idle Building
Blocks construction simulator
Free

Build the tallest skyscrapers by stacking blocks and managing construction resources. Grow your tiny tower into world landmarks, even in space. Make strategic decisions about parts, materials, and upgrades to become the ultimate idle building tycoon.

Block stacking constructionSkyscraper buildingIdle tycoon gameplay
🎮 Games
(143K)
free with in-app purchases
17
Grand Craft: 3D building games
Grand Craft: 3D building games
Grand Craft: 3D building games
Block world exploration-online
Free

Unleash your creativity by building unique worlds and structures from cubes. Explore vast block worlds, either solo or with friends, and enjoy a fun, engaging experience for all ages.

Creative building with cubesWorld explorationMultiplayer with friends
🎮 Games
(3.1K)
free with in-app purchases
18
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Rally the Fleet,Hunt the Stars
Free

Command your fleet in a post-war galaxy, taking on bounty contracts and exploring ruins for treasure and technology. Build your base, upgrade your ships, and engage in tactical space combat. The choice is yours: roam the void or rise from chaos.

Interstellar tactical extraction gameplayFleet command and controlBounty hunting and contract missions
🎮 Games
(7.4K)
free with in-app purchases
19
Nova: Space Armada
Nova: Space Armada
Nova: Space Armada
The Republic will bring light
Free

Build and command your own space station and fleet in a chaotic galaxy. Forge alliances, explore new worlds, and engage in strategic space battles to shape the future of the sector. Your decisions will determine the fate of the galaxy.

Build and customize space stationsAssemble modular warship fleetsForm intergalactic alliances
🎮 Games
(3.8K)
free with in-app purchases
20
Star Realms
Star Realms
Star Realms
by White Wizard Games LLC
Free

Engage in thrilling space combat with this popular deckbuilding game. Build your deck, outmaneuver opponents, and conquer the galaxy. Offers both single-player campaigns and multiplayer battles.

Deckbuilding gameplayPlayer vs Player combatAI battles
🎮 Games
(4.4K)
free with in-app purchases

FAQ about Sci-Fi Base Building Game

What is the best sci-fi base building game for iPhone?
Rivals at War: 2084 tops our sci-fi base building game ranking as of June 2026, with a 4.0-star average from 284 App Store ratings, and it's free to download.
Yes — 18 of the top sci-fi base building game we rank are free to download, including Rivals at War: 2084 and Building Arcadia.
Rivals at War: 2084 shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 207+ sci-fi base building game on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Rivals at War: 2084 is a sci-fi strategy shooter game set in the year 2084. Players train and equip elite space marines, attack rival teams, and conquer planets to dominate the galaxy. It features a story mode, multiplayer challenges, and strategic gameplay elements.
Key features include training and equipping space marines, attacking rival teams, conquering planets on a star map with 75 locations, challenging friends in head-to-head combat, using tactic cards for strategic advantage, and progressing through over 45 player achievements.