| PC/MS-Windows CD |  Gloria | 1999 | C's Ware |
| Nintendo 64 cart. | Glover 2 | 1999 | Hasbro Interactive, Inc. |
| Sony PlayStation CD |  Glover Model SLES-02213 | 1999 | Hasbro Interactive, Inc. |
| Sony PlayStation CD | Glover Model SLUS-00890 | 1999 | Hasbro Interactive, Inc. |
| Taito G-Net card | Go By RC | 1999 | Taito Corp. Japan |
| Fruit Machine | Go for Gold | 1999 | JPM International |
| PC/MS-Windows CD | Go Kart Racing | 1999 | Micro Application |
| Nintendo Game Boy Color cart. | Godzilla - The Series Model DMG-AZIE-USA | 1999 | Crave Ent., Inc. |
| Sega Dreamcast GD | Godzilla Generations - Maximum Impact Model HDR-0047 | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Nintendo 64 cart. | Goemon - Mononoke Sugoroku Model NUS-NGPJ | 1999 | Konami Co., Ltd. Japan |
| Nintendo 64 cart. | Goemon's Great Adventure | 1999 | Konami Co., Ltd. Japan |
| Slot Machine | Going Gold | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Gold Digger | 1999 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Gold Fever | 1999 | IGT International Game Technologies Reno, NV, USA |
| Fruit Machine | Gold Fever | 1999 | Impulse Gaming |
| IBM PC/AT DOS CD |  Gold Games 4 | 1999 | TopWare Interactive AG |
| Video Slot Machine | Gold Strike | 1999 | Excellent System, Ltd. Japan |
| Bingo | Golden Gate | 1999 | Sirmo Belgium |
| Nintendo Game Boy Color cart. | Golden Goal Model DMG-AAFD-NOE | 1999 | Take-Two Interactive |
| Nintendo Game Boy Color cart. | Golden Goal Model DMG-AAFX-EUR | 1999 | Take-Two Interactive |
| Pachislot | Golden Hammer | 1999 | IGT-Japan KK Japan |
| Video Slot Machine | Golden Region | 1999 | Konami Co., Ltd. Japan |
| Arcade Video game | Golden Tee '99 | 1999 | Incredible Technologies, Inc. Rolling Meadows, IL, USA |
| Arcade Video game | Golden Tee '99 Tournament Edition | 1999 | Incredible Technologies, Inc. Rolling Meadows, IL, USA |
| Arcade Video game | Golden Tee Royal Edition Tournament | 1999 | Incredible Technologies, Inc. Rolling Meadows, IL, USA |
| Nintendo Game Boy Color cart. | Golf Daisuki! Model DMG-AAGJ-JPN | 1999 | KID Kindle Imagine Develop |
| Nintendo Game Boy Color cart. | Golf de Ohasuta Model DMG-AOHJ-JPN | 1999 | Epoch Co., Ltd. Tokyo, Japan |
| Nintendo Game Boy Color cart. | Golf Ou Model CGB-AZAJ-JPN | 1999 | Digital Kids |
| Sega Dreamcast GD | Golf Shiyou yo Model T-40901M | 1999 | Bottom Up Japan |
| Arcade Video game | Golgo 13 | 1999 | NAMCO, Ltd. Japan |
| Pachislot | Gong | 1999 | Net Corp. Japan |
| Pachislot | Gong 30-pai | 1999 | Net Corp. Japan |
| Sony PlayStation CD | Goo! Goo! Soundy Model SLPM-86250 | 1999 | Konami Co., Ltd. Japan |
| Pachislot | Good Man | 1999 | Okazaki Sangyo Co., Ltd. Japan |
| Fruit Machine | Good Times Model 1113 | 1999 | ELAM Group Veldhoven, Netherlands |
| Sony PlayStation CD | Googootrops Model SLPM-86148 | 1999 | Enix, Ltd. Japan |
| Arcade Video game | Goori Goori | 1999 | Unico Electronics Co., Ltd. Seoul, Korea |
| Slot Machine | Gopher Cash | 1999 | IGT International Game Technologies Reno, NV, USA |
| Bandai WonderSwan cart. | Goraku Ou Tango! Model SWJ-PAW001 | 1999 | Mebius Japan |
| Pachislot | Gothic Beast | 1999 | Vanguard Co., Ltd. |
