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William and Sly

rated 4.44 / 5 stars
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Action - Platformer - Other

Credits & Info

Jul 17, 2009 | 3:03 PM EDT
  • Frontpaged July 17, 2009
  • Daily Feature July 17, 2009
  • Weekly 2nd Place July 21, 2009

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Flight 5 Points Find the wings.
Weather Mage 5 Points Turn off the rain.
Dominus Lux 10 Points Slay five darklings.
Deviation 25 Points Unlock all boxes and switches.
Resolution 25 Points Complete the game.
Sensitive Nose 50 Points Find all of the mushrooms.
Sly Fox 100 Points Earn more than 35,000 points.

Author Comments

JAN 30, 2016
Hey guys, I’ve started work on a possible William and Sly 3. Follow me on facebook for updates!


This is probably my best game to date. I wanted to make something more accessible, as most of my flash games have been too complicated for my family to play. :3

I really hope you guys enjoy it, I think it's the most effort I've put in to anything. A big thanks to everyone who helped me test, and Tom and NG for the sponsorship!

As always, leave a comment! I love reading them.

EDIT: The game has version detection, but YOU NEED FLASH 10 to play it. If you have trouble loading the game, please send me a PM with the details.

EDIT: Because nearly everyone is saying they can't figure out the boss's pattern, I've made a slight change that should make it more obvious. Once the game update is approved I'll let you guys know and you can try again with the new pattern. *Alright it's up now*

If you're getting a black screen after the Newgrounds and Particlasm screens this applies to you. This might also help with the loading bar freezing. This was posted by a Kongregate user (thanks Knork):

"If the game does not load past the ads make sure that and are not being blocked in your hosts file. Which is located under C:\WINDOWS\system32\drive rs\etc
If they are, uncheck the "Read-only" attribute and edit out those two lines."

If this works for you let me know.



Rated 5 / 5 stars


Really awsome :D


Rated 5 / 5 stars


amazing game
the graphics and movements are so smooth

PS: the medals aren't working. i don't know if its just me but you might want to look into it

People find this review helpful!


Rated 4.5 / 5 stars

Really great

Awesome game, really enjoyed it


Rated 5 / 5 stars


Really enjoyable!


Rated 4.5 / 5 stars


The graphics and animation was smooth and excellent looking. The controls were great and easy getting used to. The gameplay was fun, but maybe boring if you only go for the runestones. It's also about unlocking and discovering the other places in the game, such as the bridges(it is a little pointless collecting the mushrooms). So I'd like to comment all those people who say it's boring and needs more action and excitement:
Who ever told you this was an action game? I can't see how you think this is surposed to be exciting. If you want an action packed sidescroller, then go make one yourself insteed of saying that this game needs something the creator didn't want it to have.
The game isn't just about collecting fairyflies and activating runestones. Have you ever played Assassin's Creed? You don't rush it and get those 3 clues and then go assassinate your target without even looking at all the other options you have in the city.

But overall I think it was a good and little missunderstood game.
And I still don't get the "Fork" sign