Idle Area 51 v1.8.10

PlaySide Studios

Contains ads • In-app purchases

About this app

Developer Description

Become the best secret agent and run your own secret facility in this idle 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!

What's New

The Aliens have a brand new update for you:

- Bringing more bug fixes and stability to you.

In-app purchases

$0.99 - $99.99 per item

Version Information

Version: 1.8.10
Downloads: 500K+
Updated on: Oct 14, 2025
Released: Mar 17, 2021
Requires: Android 5.1

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Idle Area 51 users say on Google Play

★★★★★

Chris Miller

Adds are for the most part optional, and it progresses smoothly.

★★★★

mwmccrary

Fun game. My only issue is that I have 2 accounts because my phone and laptop aren't synced. I uninstalled and reinstalled on my laptop but it just started the game over. I would like to play the same account on both.

★★★

Liam Weston

Too many bugs, the game is riddled with them and one of them in particular can be exploited to make the game very easy to get to the final level. That being said without the exploit the games targets are unrealistic and would take far to much time to complete so for a game that's supposed to be quick fun it wouldn't be without the money bug

★★

Keith Tan

Not too bad. Builds on an established model with a new story and graphics that are acceptable. Notifications come up which are false. For example, your progress it tells you that you have progressed and to claim rewards but there is no reward to claim. Sufficient for 2 Stars but lacks the ability to keep my attention. In general, 10 seconds a day just to collect rewads in order to progress. It's a grind like any other game but this serves no purpose.

★

Vir-Pyre (virpyre)

Not much to do, there's 4 upgrades, and once you build them and make enough money for the space station, the game is boring. The ads on the side aren't worth watching. Nether is the 2 minute x2 buff for 30 second videos that might give you a reward, then you have: $10 to remove ads, $5 income buff, and another x2 buff for $10 and a $15 pass very greedy game.