About Flixel

Flixel is an open source game-making library that is completely free for personal or commercial use. Written entirely in ActionScript 3 by Adam “Atomic” Saltsman, and designed to be used with free development tools, Flixel is easy to learn, extend and customize. Flixel has been used in hundreds of games, including IGF nominees, Adult Swim games, and avant-garde experiments. Many Flixel users make their first game ever in Flixel.


Flixel includes some basic features common to many game engines or other game libraries.

  • Display thousands of moving objects
  • Basic collisions between objects
  • Group objects together for simplicity
  • Easily generate and emit particles
  • Create game levels using tilemaps
  • Text display, save games, scrolling
  • Mouse & keyboard input
  • Math & color utilities

Flixel also includes some new "advanced" features, which we'll explore in more detail on the features page.

  • Record and play back replays
  • Powerful interactive debugger
  • Camera system for split screen
  • Pathfinding and following
  • Easy object recycling


Adam started working on Flixel in March of 2008, and released the first public version in June 2009. Probably the most commonly asked question about Flixel is "where did it come from?" so we've included a short explanation here.

“I tried a few different times to make a little game engine type thing that would allow me to make retro games. That just seemed like a fun thing to be able to do for fun on a weekend. I tried it in C++/Python/OpenGL right when I left school, maybe 7 years ago? Anyways, it was a failure. Once ActionScript 3 came out, I was able to do some of the pixel-level stuff that I was really interested in. However, by the time I got my hands on AS3, I was more interested in just making little games, and seeing what patterns evolved. I kept making more complex games by reusing the code from the last project, and eventually those parts that I was seeing in every project got moved to their own folder. I think a lot of coders out there have a folder like this on their hard drive somewhere.”


Flixel simply could not be what it is today without help, support and inspiration from a lot of fantastic people. Starting with v2.50, we have relied more on the kindness of strangers than ever before, starting with our awesome all-volunteer web team:

Special Thanks

Rebekah Saltsman puts up with a lot of crap, and without her patience there would not be any Flixel. Paul Veer painted the images on the index and 404 pages, as well as the background tile for this site. Ivan Safrin (F*ck Typing, Bitworld) taught Adam to write Flash games years ago, a pretty big moment in retrospect. A lot of Flixel forum members have caught bugs or contributed great snippets of code, too many people to list here. You’re all awesome. Finally, a big thank you to the indie games community at large, who have been so supportive and helpful and inspiring over the years.

Image RSS Feed Latest Screens
Dot-Matrix Shooter by FriedPixel Games Zandaka Senran by Gold_Ninja Mode by Adam Atomic
Blog RSS Feed Report abuse Latest News: FlyShootTrade Alpha.01 Out!

About FlyShootTrade with 0 comments by IAmBigCoat on Jul 21st, 2014

New Title Screen... Maybe?

It took time and a fair amount of fiddling about with AIR packaging, but the day has arrived! FST_A_01 is out and you can grab it below! Feast your eyes, ears, and keyboards on the beautifully unfinished art and gameplay! Delight your ears with both of the sound effects in this GLORIOUS SHMUP RPG! Enjoy the knowledge that very little of what you see and hear will make it into the final game!

Windows (And Mac too, probably? The setup should work on a Mac.)
FlyShootTrade Alpha.01
Website (about as updated as IndieDB)

Next on the Update list:

  • Saving planet inventories instead of advancing the calendar and letting restock deal with it.
  • Adjusting the UI so it fits the new-ish, widescreen resolution.
  • Maybe de-ugly-ing the whole UI in general.
  • Sounds. Maybe music. Maybe get a composer.
  • Copilots!


About Men & Guns

About Men & Guns About Men & Guns Indie

Updated 9 months ago TBD Single Player Tactical Shooter

Challenge western bandits and save the day(or night). About Men & Guns is a mix of lucky, strategy and blood! Travel through the West hunting the...


Abstraction Abstraction Indie

Updated 4 months ago Released Feb 14, 2013 Single Player Third Person Shooter

Abstraction began as an exercise in procedurally generating AI for a top-down shooter. It became a series of boss fights with roguelike elements.


Anodyne Anodyne Indie

Updated 1 year ago Released Sep 24, 2012 Single Player Adventure

In Anodyne, you explore and fight your way through nature, urban and abstract themed areas in the human Young's subconscious, evoked by a 16-bit-era visual...

Blasting Agent

Blasting Agent Blasting Agent Indie

Updated 4 days ago Released Dec 22, 2009 Single Player Arcade

Trouble in Antarctica! The Black Hand of Fate, an international terrorist group, has constructed a secret base within the heart of a Volcano, and have...

Blue Giant

Blue Giant Blue Giant Indie

Updated 3 months ago TBD Single Player Platformer

Blue Giant is what happens when VVVVVV meets Metroid meets Megaman. Blue Giant is an exploration heavy puzzle-platformer that centers around the concept...

Post comment Comments
Guest Apr 21 2014, 10:59am says:

does this work on windows 8

+1 vote     reply to comment
Guest Oct 5 2013, 2:03pm says:

I don't know if there's a better way to communicate this, but Flixel does not have a commercial license! Flixel uses the MIT License - you can see it in license.txt if you download the source.

+1 vote     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Flixel dev team
Send Message
Official Page
Release Date
Released Apr 24, 2011
Engine Watch
Track this engine
Community Rating



0 votes submitted.

You Say


Ratings closed.


Latest tweets from @adamatomic

(That RT was for my main moon-fossil proponent buddy @progrium)

8hours 59mins ago

RT @bldgblog: Fossils of life from the ancient earth might be found on the moon: T.co

9hours 0mins ago

RT @thisisaJo: One time long ago I put this pug pizza puzzle on Instagram & it did NOT get the love it deserves so here it is again. http:/…

9hours 3mins ago

RT @games_we_care: Gasketball - T.co (iOS, free/IAP) "Underappreciated basketball minigolf" - @AdamAtomic T.co

9hours 13mins ago

@JarMustard yea the flipside of what happened today is having everything done but there’s one terrible flaw. that’s The Worst

13hours 42mins ago

@JarMustard i feel a lot of pressure sometimes to rush ahead, i think its been a real problem for me....

13hours 48mins ago

@JarMustard been putting actual effort into being more confident about areas of a design still being nebulous, because of things like this!

13hours 48mins ago

@JarMustard yea… yup. this was a good discovery. it was just a chunk of the overall design that was real nebulous still, then…. crystal

13hours 48mins ago

@warandpeace @Nelsormensch @deliciousbees this is just a real good tweet that is all

13hours 51mins ago

Funny design breakthrough today. At the time seemed convenient, now seems like maybe the defining feature of the whole game

13hours 56mins ago

Embed Buttons

Promote Flixel on your homepage or blog by selecting a button and using the HTML code provided (more).

Flixel Flixel
47 of 644
Last Update
5 days ago
29 members