| DEC PDP-11 disk |  Alder | 1978 | Kouwenhoven, Peter |
| Apple II cass. | Alien Encounters Model AP004 | 1978 | Programma International, Inc. |
| Apple II cass. | Alien Invasion Model AP005 | 1978 | Programma International, Inc. |
| Other | Alphie the Electronic Robot | 1978 | Playskool |
| Xerox Alto soft. | Alto Trek | 1978 | Ball & Rashid |
| Handheld game | Amaze-A-Tron Model 2010 | 1978 | Coleco Industries, Inc. Amsterdam, NY, USA |
| BASIC soft. type-in | Amazing | 1978 | Workman Publishing NY, USA |
| Redemption video game | Amusement 21 | 1978 | A-1 Supply, Inc. Reno, NV, USA |
| TRS-80 cass. | Android NIM | 1978 | 80-NW Publishing Co. |
| BASIC soft. type-in | Animal | 1978 | Workman Publishing NY, USA |
| Texas Instruments TI-57 soft. | Ant Invasion | 1978 | Texas Instruments |
| Bally Astrocade type-in | Anti-Aircraft Gun | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Apple II 5.25 disk | Appilot Edu-Disk | 1978 | MUSE Soft. Micro Users Soft. Exchange |
| Apple II cass. | Apple Casino Model ADG0108 | 1978 | Powersoft, Inc. |
| Apple II cass. | Apple Derby Model ACG0107 | 1978 | Powersoft, Inc. |
| Apple II cass. | Apple Spacewar Model CS-4009 | 1978 | Creative Computing Soft. |
| Apple II 5.25 disk | Apple Vision | 1978 | Apple Computer, Inc. |
| Tabletop game | Arcade Game | 1978 | Tomy |
| Texas Instruments TI-57 soft. | Arithmetic Game | 1978 | Texas Instruments |
| Mattel Intellivision cart. | Armor Battle Model 1121 | 1978 | Mattel Electronics Mattel, Inc. |
| Handheld game | Armor Battle Model 2938 | 1978 | Mattel Electronics Mattel, Inc. |
| Magnavox Odyssey² cart. | Armored Encounter! + Sub Chase! Model AJ9403 | 1978 | Philips Corp. |
| BASIC soft. type-in |  Art Auction | 1978 | Creative Computing Soft. |
| TRS-80 type-in | Art Auction | 1978 | Personal Soft., Inc. |
| Apple II cass. | Artillery Duel | 1978 | Programmer Soft. |
| Apple I soft. | ASMmchess | 1978 | Unknown |
| Felix C-256 soft. | Astro-64 | 1978 | Darie, Viorel |
| Apple II cass. | Astro-Word Search | 1978 | PDI Program Design, Inc. |
| Arcade Video game | Atari Football 2-Player model | 1978 | Atari, Inc. CA, USA |
| Arcade Video game | Atari Game Booth | 1978 | Atari, Inc. CA, USA |
| Arcade Video game |  Atari Mini Golf | 1978 | Atari, Inc. CA, USA |
| Pinball | Atlantis | 1978 | Nordamatic Verona, Italy |
| Texas Instruments TI-57 soft. | Automatic Draw Poker | 1978 | Texas Instruments |
| VC 4000 cart. | Autorennen Cassette No. 1 | 1978 | Interton Electronic |
| Arcade Video game | Avalanche | 1978 | Atari, Inc. CA, USA |
| Atari 2600 cart. |  Aventura | 1978 | Polyvox Brazil |
| Commodore PET cass. | Awari P | 1978 | Creative Computing Soft. |
| BASIC soft. type-in | Awari | 1978 | Workman Publishing NY, USA |
| North Star Horizon disk | B-1 Nuclear Bomber | 1978 | Bedrosian, Gary |
| Compucolor II disk | Backgammon | 1978 | Compucolor Corp. |
