Uploaded February 2010 | Updated September 2026, 2 weeks ago
From the awesome creator that made "Robotnik's Revenge", here another awesomely hack called Sonic 3 & Knuckles: The Challenges.
Sonic 3 & Knuckles: The Challenges is an award-winning hack by ColinC10.
From the awesome creator that made "Robotnik's Revenge", here another awesomely hack called Sonic 3 & Knuckles: The Challenges.
Sonic 3 & Knuckles: The Challenges is an award-winning hack by ColinC10.


![Sonic the hedgehog 3D Sage 2009 Demo 2/2
(part 2)Credits.
Zykov Eddy leader of the project.
[LP]Scorpion modeller.
Daroach modeller.
Rootman storyline.
Additional thanks to:
Hey-Pi-Ron for some sounds, skins for models and beta testing.
Sunlight for beta testing.
M210 for game launcher and beta testing.
Lezing for help with code.
STP for some models.
Chicken for ring model skin.
Mikko Sandt for review on his site.
Special thanks to guys from AMC forums for nice ideas.
Copyrights.
Textures and sounds was taken from:
Sonic games
Hacx (addon for Doom 2)
Doom 1 & 2 WADs
Strife
Quake
Unreal
Tek War
Duke nukem 3D TCs
Liquidator
Blood
Lameduke
Hexen
Heretic
Powerslave
Dark forces
Half Life
Zero Wing (genesis video game)
Shadow warrior
Invincibility effect sprite was taken from SRB2.
Sonic and Knuckles models was taken from SRB2 forums. Credits to Ashnal.
Some music by Mark Hadley.
Some textures and models was taken from Duke HRP. Sonic the hedgehog 3D Sage 2009 Demo 2/2](https://i.ytimg.com/vi/sET_olsLeHk/mqdefault.jpg)






![Sonic the hedgehog 3D Sage 2009 Demo 1/2
Credits.
Zykov Eddy leader of the project.
[LP]Scorpion modeller.
Daroach modeller.
Rootman storyline.
Additional thanks to:
Hey-Pi-Ron for some sounds, skins for models and beta testing.
Sunlight for beta testing.
M210 for game launcher and beta testing.
Lezing for help with code.
STP for some models.
Chicken for ring model skin.
Mikko Sandt for review on his site.
Special thanks to guys from AMC forums for nice ideas.
Copyrights.
Textures and sounds was taken from:
Sonic games
Hacx (addon for Doom 2)
Doom 1 & 2 WADs
Strife
Quake
Unreal
Tek War
Duke nukem 3D TCs
Liquidator
Blood
Lameduke
Hexen
Heretic
Powerslave
Dark forces
Half Life
Zero Wing (genesis video game)
Shadow warrior
Invincibility effect sprite was taken from SRB2.
Sonic and Knuckles models was taken from SRB2 forums. Credits to Ashnal.
Some music by Mark Hadley.
Some textures and models was taken from Duke HRP. Sonic the hedgehog 3D Sage 2009 Demo 1/2](https://i.ytimg.com/vi/uORPa5F1PsE/mqdefault.jpg)
