R&D

Research and Development is the name Sega adopted from 1984 to 1990 encompassing all their internal development operations. Before Sega called it the Production and Engineering Department. In 1990, Sega split it's amusement and consumer operations into two, with each business gaining their own managerial staff.

During this period Hisashi Suzuki and Hideki Sato lead all of Sega's operations.

Softography (arcade)

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Softography (consumer)

SG-1000

• Champion Boxing (1984)
• Champion Soccer (1984)
• Flicky (1984)
• Orguss (1984)
• Safari Race (1984)
• Girl's Garden (1984)
• Golgo 13 (1984)
• Home Mahjong (1984)
• Pachinko II (1984)
• Hang On II (1985)
• C_So! (Development: Compile) (1985
• Champion Ice Hockey (1985)
• Doki Doki Penguin Land (1985)
• Dragon Wang (1985)
• Zaxxon (1985)
• Zoom 909 (1985)
• Loretta no Shouzou: Sherlock Holmes (1987)

Master System

• Astro Warrior (1985)
• Bank Panic (1985) (Development: Sanritsu)
• Black Belt (1985)
• Great Baseball (1985)
• Hang-On (1985)
• Marksman Shooting & Trap Shooting (1985)
• Pit Pot (1985)
• Pro Wrestling (1985)
• Secret Command (1985)
• Safari Hunt (1985)
• Satellite 7 (1985)
• Space Harrier (1985)
• Super Tennis (1985)
• Teddy Boy Blues (1985)
• TransBot (1985)
• World Grand Prix (1985)
• Comical Machine Gun Joe (1985)
• High School! Kimengumi (1985)
• Champion Kendou (1986)
• Champion Billiards (1986) (Development: Compile)
• Gulkave (1986) (Development: Compile)
• Ninja Princess (1986)
• Snail Maze (1985)
• Super Tank (1986)
• Terebi Oekaki (1986)
• Wonder Boy (1986) (Development: Westone)
• Action Fighter (1986)
• Alex Kidd in Miracle World (1986)
• After Burner (1987)
• Alex Kidd BMX Trial (1987)
• Alien Syndrome (1987)
• Aztec Adventure: The Golden Road to Paradise (1987)
• Enduro Racer (1987)
• Fantasy Zone II: The Tears of Opa-Opa (1987)
• Fantasy Zone: The Maze (1987)
• Gangster Town (1987)
• Ghostbusters (1987) (Development: Compile)
• Great Basketball (1987)
• Great Football (1987)
• Great Volleyball (1987)
• Kung Fu Kid (1987)
• Missile Defense 3-D (1987)
• Parlour Games (1987) (Development: Compile)
• Penguin Land (1987)
• Phantasy Star (1987)
• OutRun (1987)
• Quartet (1987)
• Rocky (1987)
• SDI: Strategic Defense Initiative (1987)
• Woody Pop (1987)
• World Soccer (1987)
• Wonder Boy (1987) (Development: Westone)
• Zaxxon 3D (1987)
• Zillion (1987)
• Zillion II: The Tri Formation (1987)
• Mahjong Sengoku Jidai (1987) (Development: Sanritsu)
• Sukeban Deka II: Shoujo Tekkamen Densetsu (1987)
• The Pro Yakyuu: Pennant Race (1987)
• Alex Kidd: The Lost Stars (1988)
• American Baseball (1988)
• Blade Eagle (1988)
• Cyborg Hunter (1988)
• Kenseiden (1988)
• Lord of the Sword (1988)
• Maze Hunter 3D (1988)
• Rambo III (1988)
• Shinobi (1988)
• Space Harrier 3D (1988)
• SpellCaster (1988)
• Thunder Blade (1988)
• Wonder Boy in Monster Land (1988) (Development: Westone)
• Hoshi wo Sagashite... (1988)
• Nekkyuu Koushien (1988)
• Super Racing (1988)
• Tensai Bakabon (1988)
• Alex Kidd: High-Tech World (1989)
• Ali Baba and 40 Thieves (1989)
• Altered Beast (1989)
• American Pro Football (1989)
• Basketball Nightmare (1989)
• Battle OutRun (1989)
• Bomber Raid (1989) (Development: Sanritsu)
• Casino Games (1989) (Development: Compile)
• Galaxy Force (1989)
• Golden Axe (1989)
• OutRun 3D (1989)
• Poseidon Wars 3D (1989)
• Psycho Fox (1989) (Development: VIC Tokai)
• Wanted (1989) (Development: Sanritsu)
• Wonder Boy III: The Dragon's Trap (1989) (Development: Westone)

Mega Drive

• Alex Kidd in the Enchanted Castle (1989)
• Arnold Palmer Tournament Golf (1989)
• Dynamite Dux (1989)
• Golden Axe (1989)
• Last Battle (1989)
• Mystic Defender (1989)
• Phantasy Star II (1989)
• Rambo III (1989)
• Super Hang-On (1989)
• Super League (1989)
• Sword of Vermilion (1989)
• The Revenge of Shinobi (1989)
• World Cup Soccer (1989)
• Altered Beast (1988)
• Space Harrier II (1988)
• Super Thunder Blade (1988)
• Osomatsu-kun Hachamecha Gekijou (1988)
• Tetris (1988)