| Tecmo Baseball | US | 1989-01 |
Tecmo | Commercial |
| Tecmo Bowl | US | 1989-02 |
Tecmo | Commercial |
| Tecmo Bowl | US | 1989-02 |
Tecmo | Prototype |
| Tecmo Bowl | WORLD | 1989-02 |
Tecmo | Commercial |
| Tom Sawyer no Bouken | JP | 1989-02 |
SETA | Commercial |
| Trojan | EU | 1989-03-23 |
Capcom | Commercial |
| Taboo - The Sixth Sense | US | 1989-04 |
Tradewest | Commercial |
| The Guardian Legend | US | 1989-04 |
Nintendo | Commercial |
| Tenchi o Kurau | JP | 1989-05 |
Capcom | Commercial |
| Teenage Mutant Ninja Turtles | US | 1989-06 |
Konami | Commercial |
| Teenage Mutant Ninja Turtles | US | 1989-06 |
Konami | Prototype |
| The Adventures of Bayou Billy | US | 1989-06 |
Konami Industry | Commercial |
| Track & Field II | US | 1989-06 |
Konami | Commercial |
| Tenkaichi Bushi - Keru Naguuru | JP | 1989-07 |
Namco | Commercial |
| Thundercade | US | 1989-07 |
Sammy | Commercial |
| Toobin' | KR | 1989-07 |
Tengen | Unlicensed |
| Toobin' | US | 1989-07 |
Tengen | Unlicensed |
| The Bugs Bunny Crazy Castle | US | 1989-08 |
Kemco | Commercial |
| Takeda Shingen 2 | JP | 1989-08-21 |
Hot-B | Commercial |
| Tanigawa Kouji no Shougi Shinan III | JP | 1989-09 |
Pony Canyon | Commercial |
| The Black Bass | US | 1989-09 |
Hot-B | Commercial |
| TwinBee 3 - Poko Poko Daimaou | JP | 1989-09 |
Konami | Commercial |
| TwinBee 3 - Poko Poko Daimaou | JP | 1989-09 |
Konami | Demo |
| Thunderbirds | JP | 1989-09-29 |
Activision | Commercial |
| The Three Stooges | US | 1989-10 |
Activision | Commercial |
| The Three Stooges | US | 1989-10 |
Activision | Prototype |
| Twin Eagle | AS | 1989-10 |
American Video Entertainment | Unlicensed |
| Twin Eagle | TW | 1989-10 |
Sachen | Unlicensed |
| Tashiro Masashi no Princess ga Ippai | JP | 1989-10-27 |
Epic/Sony Records | Commercial |
| Terao no Dosukoi Oozumou | JP | 1989-11 |
Jaleco | Commercial |
| Tetris | US | 1989-11 |
Nintendo | Commercial |
| Tetris | US | 1989-11 |
Nintendo | Prototype |
| Tetris | US | 1989-11 |
Nintendo | Unlicensed |
| To the Earth | US | 1989-11 |
Nintendo | Commercial |
| Track & Field II | EU | 1989-11-22 |
Konami | Commercial |
| The Battle of Olympus | US | 1989-12 |
Brøderbund Software | Commercial |
| The Magic of Scheherazade | US | 1989-12 |
Culture Brain | Commercial |
| The Uncanny X-Men | US | 1989-12 |
LJN | Commercial |
| Tao | JP | 1989-12-01 |
Vap | Commercial |
| Taito Chase H.Q | JP | 1989-12-08 |
Taito | Commercial |
| Top Gun - Dual Fighters | JP | 1989-12-15 |
Konami | Commercial |
| The Money Game II - Kabutochou no Kiseki | JP | 1989-12-20 |
Sofel | Commercial |
| The Lord of King | JP | 1989-12-21 |
Jaleco | Commercial |
| TM Network - Live in Power Bowl | JP | 1989-12-22 |
Epic/Sony Records | Commercial |