Idle 51 iOS
Idle 51 iOS icon

Idle 51

Publisher: PlaySide
Price: Free
  • Category
  • Version
  • Size
    461 Mb
  • Released

The aliens have CRASH landed!Salvage as much alien tech as possible from the downed UFO and take it to your super secret desert facility for research in Idle Area 51.

Start small and build your operation from scratch. Unlock the secrets of alien biology, UFO construction, high-powered laser weaponry and interstellar travel and gain more funding from the shadowy government department overseeing everything. Maximize the efficiency of your facility by speeding up your processes; buy more vans, get more salvage, increase your research stations, train your workers and grow your operations!

But you’ll need to work fast. Keep an eye out for the little green guys, get your tinfoil hats ready and expect a visit from the Guys in Black! Start a misinformation campaign to throw the public off the scent, watch out for raids on your facilities and upgrade your operations with goodies from interplanetary Star Gates and mysterious Quasars.

You’re in charge of the facility so develop your strategy, reduce costs, increase revenue and know that the choices you make will decide the fate of your operation ...and maybe even the world!

Need help? Use our Idle 51 Walkthrough page or sign up and make your contribution today.

What's new in version 1.8.1

Explore brand new worlds in our latest update! - Fixed bug that was causing the game to not work in some languages (French, German) - Brand new art for Facilities 2 and 3 - New storylines to follow - More bugfixes to keep you researching! - More lovely, lovely salvage!

About Idle 51

Idle 51 is a free-to-play, simulation and strategy game developed by PlaySide, and is available for download on both iOS and Android devices. The app is compatible with iOS 10.0 or later on the following devices: iPhone 11 Pro, X, Xs, SE, iPhone 8, 7, 6, iPad Pro and iPad Mini.

Click the button or scan the QR code below to download the latest version of Idle 51 on iOS.

App Rating & Updates

Rankings History
  • Ranked #195 in US App Store / Simulation
  • Idle 51 has an average rating of 4.8.

Recent updates

  • Release v1.8.1 Sep 7, 2021
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The app is free and offers no in-app purchases.