Castlevania: Circle of the Moon (GBA, 2001)
Hunter X Hunter: Kindan no Hihou (GBC, 2001) - WIP
Legacy of Kain: Soul Reaver 2 (PC/PS2, 2001) - WIP
Gothic (PC, 2001)? - WIP

Outliers: 
Legend of Zelda: Oracle of Seasons (GBC, 2001)
Technomage: Return of Eternity (PC/PS1, 2001)? 
Ico (PS2, 2001/PS3, 2011)
Jak and Daxter: The Precursor Legacy (PS2, 2001)?
Baldur's Gate: Dark Alliance (PS2, 2001/GC/XB, 2002/GBA?, 2004)? 
Grand Theft Auto III (PS2, 2001/PC, 2002/XB, 2003) 
Dinosaur'us (GBC, 2001)
Severance: Blade of Darkness (PC, 2001) 
Project Eden (PC/PS2, 2001) 
Extermination (PS2, 2001)
Wario Land 4 (GBA, 2001) 
​
Level-based and linear (w/ platforming): 
Conker's Bad Fur Day (N64, 2001) 
Devil May Cry (PS2, 2001) 
Illbleed (DC, 2001) 
Batman: Vengeance (Multi, 2001/PC, 2002) 
Spider-Man 2: Enter: Electro (PS1, 2001) 
Oddworld: Munch's Oddysee (XB, 2001/Multi, 2010 (Remaster))