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William and Sly

rated 4.44 / 5 stars
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Action - Platformer - Other

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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

Fantastic game!!

Brilliant fun!!! the graphics are spot on, and the music is perfect for the atmosphere, i have found it very addictive and have been playing it for about 3 hours now!!

I have just one question though; How do you get the map off of william?? everyone seems to have found it easy enough but i cant seem to get it, i have 12/13 runes on, 6/15 darkings slayed, 164/176 mushrooms found, 14/16 chests opened and 3/3 switches flipped. any ideas?

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Rated 5 / 5 stars


Awesome game!
And I have despised many game bosses in my lifetime, but that ghost snake is, I swear, one of the most frustrating :P


Rated 5 / 5 stars


One of the best games I've played in a while. I think you need to make a sequel to this. Really stunning game, awsome job dude.


Rated 5 / 5 stars

easily 10 stars.

excellent. probably the best game i've played here. responsive controls, great graphics, fun adventure. my only nit is the "shakiness" of movement. makes me a tad dizzy, but that's only because it's so addictive that i've played for hours at a time. good job, man.


Rated 5 / 5 stars


This game is excellantly made, the graphics are stunning and the audio and setting is wonderfull.
It is very obvious that you enjoy making games and you could very easily become a very wealthy person.
Brilliant game, I expect more of them!

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