| Heath/Zenith H8 soft. |  Game Set = 1 | 1977 | Heathkit |
| PTC SOL-20 cass. | GAMEPAC 1 | 1977 | Processor Technology Corp. |
| PTC SOL-20 cass. | Gamnim P | 1977 | Hopkins, Ralph |
| Pinball | Getaway | 1977 | Allied Leisure Industries, Inc. Hialeah, FL, USA |
| Dedicated Console | Glorytone 4 Switch | 1977 | Glorytone |
| Pinball | Gold Star | 1977 | AMI Torino, Italy |
| Pinball | Golden Arrow Model 408 | 1977 | Gottlieb & Co., D. Chicago, IL, USA |
| BASIC soft. type-in | Golf | 1977 | Scientific Research Inst. |
| HP-67 soft. | Golf | 1977 | Personal Programming Center |
| Texas Instruments TI-57 soft. | Golf | 1977 | Texas Instruments |
| BASIC soft. type-in | Gomoku | 1977 | Scientific Research Inst. |
| BASIC soft. type-in | Gone Fishing | 1977 | Personal Soft., Inc. |
| PolyMorphic Poly-88 cass. | Gpak-1: Suprtrek | 1977 | Compusoft Dept. SF |
| PolyMorphic Poly-88 cass. | Gpak-2 | 1977 | Compusoft Dept. SF |
| PolyMorphic Poly-88 cass. | Gpak-3 | 1977 | Compusoft Dept. SF |
| PTC SOL-20 cass. | Graf - Spee P | 1977 | Van Pelt & Hopkins |
| Pinball | Grand Prix | 1977 | Williams Mfg. Co. Chicago, IL, USA |
| Arcade Video game | Gridiron | 1977 | Meadows Games, Inc. Sunnyvale, CA, USA |
| Pinball | Gridiron Model 420 | 1977 | Gottlieb & Co., D. Chicago, IL, USA |
| Arcade Video game | Guided Missile Model 623 | 1977 | Midway Mfg. Co. Schiller Park, IL, USA |
| Pinball | Gun Men | 1977 | Staal |
| Arcade Video game |  Gunman | 1977 | Taito Corp. Japan |
| PTC SOL-20 cass. | Hamurabi P | 1977 | Mellor, John |
| Ohio Scientific soft. | Hamurabi P | 1977 | Unknown |
| Pinball | Hangers | 1977 | Playmatic, S.A. Spain |
| MOS 6502 CPU soft. | Hangman | 1977 | Technical Systems Consultants, Inc. |
| HP-67 soft. | Hangman | 1977 | Hewlett-Packard |
| MOS KIM-1 cass. | Hangman | 1977 | Technical Systems Consultants, Inc. |
| Ohio Scientific soft. | Hangman | 1977 | Technical Systems Consultants, Inc. |
| MITS Altair 8800 soft. | Hangmath | 1977 | 1001001, Inc. |
| Pinball | Hard Rock | 1977 | Universal Co., Ltd Tokyo, Japan |
| Slot Machine | Hellomat Hold | 1977 | Hellomat Automaten |
| Pinball | Hercules | 1977 | Universal Co., Ltd Tokyo, Japan |
| HP-67 soft. | Hexapawn | 1977 | Hewlett-Packard |
| MOS KIM-1 cass. | Hi-Lo P | 1977 | Butterfield, Jim |
| SWTPC 6800 soft. | Hi-Lo P | 1977 | 1001001, Inc. |
| HP-65 soft. | Hi-Lo P | 1977 | Unknown |
| Texas Instruments SR-52 soft. |  Hi-Lo | 1977 | SR-52 Users Club |
| Bingo | High Flyer Model 1131 | 1977 | Bally Mfg. Co. Chicago, IL, USA |
| PLATO soft. | Hobbits and Orcs | 1977 | University of Illinois |
