Wonder Boy in Monster World/Monster World III/Dynastic Hero (MD, 1991/PCE CD, 1993) 
Ufouria (NES, 1991)
Metroid II (GB, 1991)
Popful Mail (PC-88, 1991/PC-98, 1992/PCE CD, 1994)(Untranslated) 
Fantastic Dizzy/The Fantastic Adventures of Dizzy (NES, 1991/Multi, 1993) 
Ax Battler (GG, 1991) 
Quackshot starring Donald Duck (MD, 1991)

​Magician (NES, 1991)
​Secret Scout in the Temple of Demise (NES, 1991)

Toshi Tensou Keikaku: Eternal City (PCE/TG16, 1991)

Spellbound Dizzy (Multi, 1991)

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Cocoron (NES, 1991)

Commander Keen IV: Secret of the Oracle (PC, 1991)?​​

Outliers: 
Hunter (AMI)(Hunter/Adventure mode)

Star Wars (NES, 1991/SMS, 1993?)

Dizzy: Prince of the Yolkfolk (Multi, 1991)

Exile (PCE CD/MD) (Telenet/Riot version) - ARPG
Captain America and the Avengers (NES, 1991) 
Cybercon III (AMI/ST, 1991/PC, 1992)
​Midwinter II: Flames of Freedom (ST/AMI, 1991/PC, 1992) 
Clystron (C64) 
Legend of the Mystical Ninja (SNES) 
Robin Hood: Prince of Thieves (NES) 
Kid Icarus: Of Myths & Monsters (GB) 
Elf (AMI) 
Rent-a-Hero (MD) 
Conan the Cimmerian (PC) 
Mission/Misja (Atari XL, 1991) 
Miecze Valdgira/Valdgir's Swords (Atari XL, 1991) 
Metal Mutant (AMI/ST/PC, 1991) 
James Pond 2: Codename Robocod (Multi) 
Mega Man 4 (NES) 
Another World (AMI etc., 1991)
Eye of the Beholder series (PC) 
Crossed Swords (ARC/NG, 1991)?