Roblox Alien Simulator Codes (August 2021)

Our Roblox Alien Simulator Codes has the most up-to-date list of working codes that you can redeem for plenty of extra cash! These rewards will kickstart your reign upon human civilization!

All Alien Simulator Codes List


We'll keep you updated with additional codes once they are released. You should make sure to redeem these as soon as possible because you'll never know when they could expire! All of these codes have been tested on the date that this post was released. If you find one that is expired, please let us know the exact code in the comments below so we can remove it!


Make sure to enter the code exactly as it is listed or it might not work correctly!

Update May 18
  • Four new codes added

Alien Simulator Codes (Working)

Here's a look at all of the working Alien Simulator codes.

  • UFO20 - Redeem for 7,500 Cash (NEW)

  • UFO19 - Redeem for cash (NEW)

  • UFO17 - Redeem for 2,500 Cash (NEW)

  • UFO16 - Redeem for 1,250 Cash (NEW)

  • UFO18 - Redeem code for 5,000 Cash

  • UFO15 - Redeem code for lots of Cash

  • UFO14 - Redeem code for lots of Cash

Alien Simulator Codes (Expired)


These Alien Simulator codes no longer work.

  • There are no expired codes at this time.

How to Redeem Alien Simulator Codes


Redeeming codes in Alien Simulator is straightforward. Just launch the game from your Roblox client and press the UFO alien spaceship button; this will bring up a new window of options. Look for the Twitter Bird icon and press it to bring up the Codes page. Enter all working codes in the text box. Press Redeem to receive your reward.

Game Description & Recent Update


Destroy buildings with rockets!

Abduct citizens and fight other aliens for money!

Customize your UFO with over 80+ options!

Army Helicopters want to stop your invasion!

Upgrade your stats to become more powerful!

Buy new UFOs for more health!


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