Idle Area 51

Contains adsIn-app purchases
4.01K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
Mild Fantasy Violence
In-Game Purchases (Includes Random Items)
Learn more
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About this game

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!
Become the best secret agent and run your own secret facility in this idle game.
Updated on
Oct 14, 2025
Available on
Android, Windows*
*Powered by Intel® technology
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

3.66K reviews
Jo Pi
August 2, 2021
Having an issue when I watch ads to gain money or emeralds, they don't always register to my totals after finishing the videos. I don't mind watching ads to gain some help, but after multiple times of the money or emeralds not coming through, well it's getting a bit daunting at this point. Probably delete if I don't get reimbursed, and the issue fixed. Otherwise a decent time killer game.
28 people found this review helpful
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Tammy B
July 20, 2021
Okay idea. However, when it takes a week to save up money to upgrade one thing and you're only on the second area...it's time to delete the game. It's an idle game...you check on it every so often, upgrade things, and enjoy your progress. With this game there is no progress making it unenjoyable.
8 people found this review helpful
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Amber Kopplin
February 14, 2022
I really like this game but there are so many bugs out makes it hard to enjoy. My examples are that I like quiet games. In almost every game I play I have muted but after each ad it let's some sound slip through. I have to go into settings and turn on and off the sound again. Other than that I don't like how I get a notification I can't fix. Like the clipboard in the corner, is always on even when I don't have any missions completed. It's like that for most things and I find it annoying.
110 people found this review helpful
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What’s new

bug fixes & app improvements :)