# Whole game in a single .swf file?

**URL:** https://forum.kirupa.com/t/whole-game-in-a-single-swf-file/317285
**Category:** programming
**Created:** [December 15, 2010, 10:01pm UTC](https://forum.kirupa.com/t/whole-game-in-a-single-swf-file/317285 "2010-12-15T22:01:53Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Lufia](https://avatars.discourse-cdn.com/v4/letter/l/ccd318/32.png) [@Lufia](https://forum.kirupa.com/u/Lufia)
#### Post date: [December 15, 2010, 10:01pm UTC](https://forum.kirupa.com/t/whole-game-in-a-single-swf-file/317285/1 "2010-12-15T22:01:53Z")

</div>

I feel like I don’t find an answer to this question online because it’s so very stupid. :whistle2:

Online flash game sites will ask you to upload a single .swf file. But unless I’m missing something really obvious, you can’t write custom classes in frames’ code, you actually need external .as files. Now, I know there’s stuff about allowing domains and whatnot, so I know theoretically the .swf could still find what it needs from the original site. But then, there are games that are years old online, and I find it hard to believe they’d still be working if they needed to access some personal webpage somewhere.

What I’m asking is, is it possible to actually make a whole game self-contained in a single .swf file, or are most flash developers just really dedicated about not deleting their 7-year-old poorly coded web sites?

Sorry if I’m being a moron, here. :-/