| PC/MS-Windows pack. |  12 Labours of Hercules XIII - Wonder-ful Builder Model 1720780 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. |  12 Labours of Hercules XIII Demo Model 1773790 | 20?? | Steam Valve Corp. |
| Apple Store pack. | 12 Labours of Hercules XIV - Message in a Bottle | 2022 | Unknown |
| PC/MS-Windows pack. | 12 Labours of Hercules XIV - Message in a Bottle Model 1912330 | 20?? | Steam Valve Corp. |
| Apple Store pack. | 12 Labours of Hercules XV - Little Big Adventure | 2023 | Unknown |
| PC/MS-Windows pack. | 12 Labours of Hercules Model 345080 | 2015 | Steam Valve Corp. |
| PC/MS-Windows pack. | 12 Locks and keys Model 1703470 | 2021 | Steam Valve Corp. |
| Amstrad CPC 464 disk | 12 Lost Souls | 1987 | Townsend, Len |
| PC/MS-Windows pack. | 12 Mini Battles Model 1417690 | 2020 | Steam Valve Corp. |
| Commodore C64 disk |  12 O'Clock cracked | 1991 | CHR |
| Commodore C64 disk | 12 O'Clock cracked & trained | 1991 | Fairlight |
| Commodore C64 disk | 12 O'Clock cracked & trained | 1991 | CHR |
| PC/MS-Windows CD | 12 O'Clock High - Bombing the Reich | 1999 | TalonSoft |
| Apple Store pack. | 12 orbits | 2016 | Unknown |
| Nintendo Switch pack. | 12 orbits | 2018 | Unknown |
| PC/MS-Windows pack. | 12 Orbits Model 529950 | 2016 | Steam Valve Corp. |
| Nintendo 3DS cart. | 12 Sai - Honto no Kimochi Model CTR-BTVJ-JPN | 201? | Happinet |
| Adobe Flash game | 12 Swap | 200? | Addicting Games, Inc. |
| Slot Machine | 12 Times Pay 1-Line | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | 12 Times Pay 5-Line | 2002 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | 12 Times Pay 9-Line | 2002 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | 12 Times Pay Reel Touch Bingo | 2007 | IGT International Game Technologies Reno, NV, USA |
| Amstrad CPC cass. | 12 Top Amstrad Hits | 1989 | UBI Soft Creteil, France 307211 |
| Arcade Video game kit | 12 Videogiochi | 1978 | Nuova Elettronica, La Italy |
| Online Slot | 12 Zodiacs | 201? | Habanero Systems B.V. |
| Famiclones cart. | 12-in-1 FC Music | 199? | Unknown |
| Halsall Console TV cart. | 12-in-1 Game Cartridge | 200? | Halsall |
| Famiclones cart. | 12-in-1 Hwang Shinwei | 200? | Hwang Shinwei |
| Famiclones cart. | 12-in-1 Liko | 199? | BBG Electronics Co., Ltd. |
| Famiclones cart. | 12-in-1 Smart Genius | 199? | Game Star |
| Famiclones cart. | 12-in-1 Model K12007 | 2000 | Unknown |
| Famiclones cart. | 12-in-1 Model MMK-029-00 | 199? | Unknown |
| Famiclones cart. | 12-in-1 Model NT-141 | 198? | Ka Sheng |
| PC/MS-Windows CD | 12-ji Jeonsa | 1998 | SKC, Ltd. Korea |
| Commodore C64 disk |  12.845.056 | 1989 | Defiers |
| Nintendo Satellaview BS Pack. | 12/21 Tora Maga Daisakusen | 1997 | St.GIGA Sento.GIGA Japan |
| Famiclones cart. | 120-in-1 Model FK-23CA | 200? | Unknown |
| PC/MS-Windows pack. | 120-Yen Stories Model 1799190 | 2022 | Steam Valve Corp. |
| Famiclones cart. | 1200 in 1 | 199? | Unknown |
| Famiclones cart. | 1200 in 1 Alt. | 199? | Unknown |
