Markus O.

Markus O. is a well-known level designer and programmer. He is the author of the optimization tool SuperCC.

Levels in official packs

CCLP1

#	Name
10	Graduation
23	Circles
94	Slime Forest
106	Jailbird
111	Alternate Universe

CCLP4

#	Name
104	Dual
111	Water Bottle
118	Chip Controls
120	Construct-a-Sokoban
127	Wrong Exit

CCLP5

#	Name
137	Gravelways