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The Federation of American Scientists (FAS) proudly presents Immune Attack™, an video game that introduces core concepts of molecular and cellular biology to middle school, high school and entry-level college students.

Get the GAME GUIDE HERE.   The save function will not work.  To start the game at a higher level, go to Instructor Menu, password abc and choose jump to level.

We also encourage you to download through  You can find many terrific Smart Games there.  (PC only).

Donate Now

Please consider donating.   All donations are returned to game development and testing whether Immune Attack teaches/helps teachers teach.   You will be redirected to the Federation of American Scientists (FAS) website.  To donate to Immune Attack select “Immune Attack” in the drop-down menu. Immune Attack is free to download for everyone!

If you are a K-12 teacher, please participate in our official, in class evaluation protocol.   Thank you!  We need you!!  Please sign up here:  Evaluation sign up.

Register and Download

Please register as an Immune Attack player.  We will only contact you when new versions are released and with FAS Learning Technologies news (which you can unsubscribe from anytime)!  We will not share your information.

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Are you a teacher?

Click HERE to download without registering.



The Federation of American Scientists (FAS) shall not be responsible for, and shall not pay, any amount of incidental, consequential or other indirect damages, whether based on lost revenue or otherwise, regardless of whether FAS was advised of the possibility of such losses in advance. In no event shall FAS’ liability hereunder exceed the amount of license fees paid by licensee, regardless of whether licensee’s claim is based on contract, tort, strict liability, product liability or otherwise.

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