| Commodore PET cass. |  Deflection P | 1979 | ARESCO |
| BASIC soft. type-in | Defuse | 1979 | Workman Publishing NY, USA |
| TRS-80 cass. |  Demo II Model 0049R | 1979 | Instant Soft., Inc. |
| TRS-80 cass. | Demo III Model 0055R | 1979 | Instant Soft., Inc. |
| Commodore PET cass. | Depth Charge Model PE015 | 1979 | Programma International, Inc. |
| Atari 400/800 type-in | Devil's Dungeon P | 1979 | Hayden Book Co. |
| Atari 400/800 disk | Devils Caverns | 1979 | Hayden Book Co. |
| Texas instrument TI-99/4A cart. | Diagnostic Model PHM 3000 | 1979 | Texas Instruments |
| Handheld game | Digit-Com 9 | 1979 | Epoch Co., Ltd. Tokyo, Japan |
| Handheld game | Digit-Com Block Model 35120 | 1979 | Epoch Co., Ltd. Tokyo, Japan |
| Pinball | Disco '79 | 1979 | Allied Leisure Industries, Inc. Hialeah, FL, USA |
| TRS-80 type-in | Dive Bomb! | 1979 | SoftSide Publications, Inc. |
| Arcade Video game | Dodgem | 1979 | Zaccaria Bologna, Italy |
| BASIC soft. type-in | Dodgem | 1979 | Workman Publishing NY, USA |
| TRS-80 type-in | Dog Star Adventure | 1979 | SoftSide Publications, Inc. |
| Pinball | Dolly Parton Model 1162 | 1979 | Bally Mfg. Co. Chicago, IL, USA |
| Commodore PET cass. | Dominoes Model PE019 | 1979 | Programma International, Inc. |
| TRS-80 cass. | Doodle Model TR007 | 1979 | Programma International, Inc. |
| BASIC soft. type-in | Doors | 1979 | Workman Publishing NY, USA |
| Arcade Video game | Double Block T3 | 1979 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Nascom cass. | Double Mastermind | 1979 | INMC Soft. Library |
| Bally Astrocade cass. | Down the Trench | 1979 | Sebree's Computing |
| TRS-80 cass. | Dr. Chips Model 010-0020 | 1979 | Adventure International |
| TRS-80 disk | Dr. Chips Model 012-0020 | 1979 | Adventure International |
| Handheld game | Dr. Dunk | 1979 | Kmart |
| BASIC soft. type-in | Dr. Z | 1979 | Workman Publishing NY, USA |
| Pinball | Dracula | 1979 | Stern Electronics, Inc. Elk Grove Village, IL, USA |
| Arcade Video game | Dracula Hunter | 1979 | Tekunon Kougyou |
| BASIC soft. type-in | Drag | 1979 | Workman Publishing NY, USA |
| TRS-80 type-in | Drag Race | 1979 | SoftSide Publications, Inc. |
| Sharp MZ-80K type-in | Dragon Maze | 1979 | ASCII Corp. Japan |
| Pinball | Drakor | 1979 | Taito do Brazil |
| Arcade Video game | Draw 80 Poker | 1979 | Sircoma Reno, NV, USA |
| Arcade Video game | Draw Poker | 1979 | A-1 Supply, Inc. Reno, NV, USA |
| Commodore PET cass. | Drone Model PE018 | 1979 | Programma International, Inc. |
| Commodore PET cass. | Dungeon of Death Model 0064P | 1979 | Instant Soft., Inc. |
| Apple II cass. | Dunjonquest: Morloc's Tower | 1979 | Automated Simulations, Inc. |
| Apple II cass. | Dunjonquest: The Datestones of Ryn | 1979 | Automated Simulations, Inc. |
| Commodore PET disk | Dunjonquest: The Datestones of Ryn | 1979 | Automated Simulations, Inc. |
| Commodore PET cass. | Dunjonquest: The Temple of Apshai | 1979 | Automated Simulations, Inc. |
