| Bally Astrocade type-in |  Number Match | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Bally Astrocade type-in | Number Match - Lesson Version | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Handheld game | Numbers Game | 1978 | Hanimex |
| Arcade Video game | Nyankoro | 1978 | IPM Corp. Hakusan, Ishikawa, Japan |
| Apple II 5.25 disk | Odyssey - The Compleat Apventure | 1978 | Synergistic Soft. Bellevue, WA, USA |
| Dedicated Console | Odyssey 2100 | 1978 | Philips Corp. |
| Dedicated Console |  Odyssey 5000 | 1978 | Magnavox Co., The Fort Wayne, IN, USA |
| Arcade Video game | Off Limits | 1978 | TBM Tabarroni Boldini Moris Bologne, Italy |
| DEC PDP-11 disk | Oil Company | 1978 | Creative Computing Soft. |
| Dedicated Console | Olympian 2600 | 1978 | Unisonic |
| BASIC soft. type-in | One Check | 1978 | Workman Publishing NY, USA |
| Handheld game | One Fingered Bandit | 1978 | Imaginamics |
| Arcade Video game | OOPS | 1978 | Vectorbeam Union City, CA, USA |
| Arcade Video game | Orbit | 1978 | Atari, Inc. CA, USA |
| BASIC soft. type-in | Orbit | 1978 | Workman Publishing NY, USA |
| Pinball | Orbit 1 | 1978 | Hankin & Co., A. Newcastle, Australia |
| PTC SOL-20 cass. | Oregon | 1978 | Hopkins, Ralph |
| Apple II cass. | Oregon P | 1978 | Apple Pugetsound Program Library Exchange |
| Apple II cass. | Oregon Trail | 1978 | Keyser, Earl |
| Commodore PET cass. | Osero + Reverse | 1978 | Commodore Business Machines, Inc. |
| Data General Nova soft. | Ostrich Ver.4 | 1978 | Arnold & Newborn |
| Compucolor II disk | Othello | 1978 | Compucolor Corp. |
| Intel 8080 CPU soft. | Othello | 1978 | Bell, Dave |
| Zilog Z80 CPU soft. | Othello | 1978 | Unknown |
| Apple II cass. | Othello Game | 1978 | Computing Components |
| Atari 2600 cart. |  Outlaw Model CX2605P | 1978 | Atari, Inc. CA, USA |
| Atari 2600 cart. | Outlaw Model CX2605 | 1978 | Atari, Inc. CA, USA |
| Phillips Videopac cart. | Pairs + Space Rendezvous + Logic Model 2 | 1978 | Philips Corp. |
| VC 4000 cart. | Panzerschlacht/Luftkampf Cassette No. 4 | 1978 | Interton Electronic |
| Slot Machine | Pays a Plenty Model 1164 | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Pinball | Pentacup | 1978 | Micropin |
| Bally Astrocade type-in | Perspective Box | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Bally Astrocade type-in | Phaser Phun | 1978 | Bally Mfg. Co. Chicago, IL, USA |
| Apple II cass. | Phasor Zap Model AP093 | 1978 | Programma International, Inc. |
| Pinball | Phoenix | 1978 | Williams Mfg. Co. Chicago, IL, USA |
| Texas instrument TI-99/4A cart. | Physical Fitness Model PHM 3010 | 1978 | Texas Instruments |
| Arcade Video game | Pierrot | 1978 | Uko Corp. Japan |
| TRS-80 type-in | Pillbox 2 | 1978 | SoftSide Publications, Inc. |
| Apple II cass. | Pinball | 1978 | Keyser, Earl |
| Xerox Alto soft. | Pinball | 1978 | Parker, Clinton William |
