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.

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Dot-Matrix Shooter by FriedPixel Games Zandaka Senran by Gold_Ninja Mode by Adam Atomic
Blog RSS Feed Report abuse Latest News: ZombieRun multiplayer testing week

About ZombieRun with 0 comments by indrekv on Sep 6th, 2014

This week I focused on multiplayer part of ZombieRun or as I say the most important part. ZombieRun is meant to be a solid party game and gather friends around one screen to take each other on. I invited some of my buddies over and the game was on. Some of then hadn't played before so it was interesting to see them take the first steps in the game. Once again it proved that the simplicity of the game make anyone a pro in just some minutes.

It was very fun night. I found some new bugs and got some good gameplay footage for the next trailer.

About Men & Guns

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Updated 11 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 6 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 1 month 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

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Updated 5 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
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Released Apr 24, 2011
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Latest tweets from @adamatomic

RT @EricColossal: T.co I said "It's like a doll house with dice!" #Dollhouse&Dragons

32mins 9secs ago

@axl99 @MammonMachine @luaudesigndf i like getting suggestions too :) its really almost a separate process from critique tho (for me anyways

54mins 50secs ago

@MammonMachine @axl99 @luaudesigndf giving suggestions is totally FINE to do, it can be a big help sometimes… just not a requirement imo

56mins 39secs ago

RT @FinjiGames: more serious overland design discussions T.co

57mins 3secs ago

@axl99 @MammonMachine @luaudesigndf there’s nothing *wrong* with it, im just not sure how its a requirement of all criticism

58mins 0secs ago

@MammonMachine @axl99 @luaudesigndf its really really important to get as close to the metal as you can

59mins 1sec ago

@axl99 @luaudesigndf @MammonMachine if the “criticism” is just a list of “things i didn’t like” maybe criticism isn’t the right word for it!

1hour 6mins ago

@axl99 @luaudesigndf @MammonMachine depends on definition of constructive i guess - criticism can/should offer an interpretation for sure

1hour 6mins ago

so happy that @mooonmagic took home the grand prize at @fantasticarcade this year T.co

1hour 8mins ago

RT @dailydot: #FantasticArcade gives fans a look at strange and beautiful indie games: T.co #FantasticFest

1hour 9mins ago

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