| Nintendo Switch cart. |  Jang-Navi Mahjong Online | 2018 | Winlight |
| Google Play pack. | Jelly Blast | 2018 | CookApps |
| Google Play pack. | Jellyfish Tycoon | 2018 | Mindstorm Studios |
| Google Play pack. | Jewel Blast Temple | 2018 | Cheetah Games |
| Google Play pack. | Jewel Crush | 2018 | Ivy |
| Google Play pack. | Jewelry Pop Puzzle | 2018 | Mobirix |
| Google Play pack. | Jigty Jelly | 2018 | Outfit7, Ltd. |
| Sony PlayStation 4 BR | Jikkyou Powerful Pro Yakyuu 2018 Model PLJM-16120 | 2018 | Konami Digital Ent. Co., Ltd. |
| Sony PS Vita game | Jikkyou Powerful Pro Yakyuu 2018 Model VLJM-38069 | 2018 | Konami Digital Ent. Co., Ltd. |
| PC/MS-Windows pack. | Jill of the Jungle - The Complete Trilogy | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Jimmy Hall Jr's Fallen Beast (Project Ora) Model 882830 | 2018 | Steam Valve Corp. |
| Slot Machine | Jinse Dao - Dragon | 2018 | Scientific Games Taipa, Macau |
| Slot Machine | Jinse Dao - Phoenix | 2018 | Scientific Games Taipa, Macau |
| PC/MS-Windows pack. | Johnny Bung Model 854340 | 2018 | Steam Valve Corp. |
| Sinclair ZX Spectrum cass. |  Journey to the Centre of the Earth - Extended Version (10 Anniversary) | 2018 | Topo Siglo XXI |
| Arcade Video game | jubeat festo | 2018 | Konami Digital Ent. Co., Ltd. |
| Pachislot | Jujika IV - Savior of the Blood | 2018 | Net Corp. Japan |
| Google Play pack. | Jungle Match Puzzle | 2018 | Mobirix |
| Slot Machine | Jungle Wild | 2018 | Scientific Games Taipa, Macau |
| Google Play pack. | Jurassic Tribes | 2018 | 37Games |
| Sony PlayStation 4 BR |  Just Cause 3 - Gold Edition Model PLJM-16162 | 2018 | Square Enix Co., Ltd. Japan |
| PC/MS-Windows CD | Just Cause 4 | 2018 | Square Enix Co., Ltd. Japan |
| Nintendo Wii disc | Just Dance 2019 Model RVL-S5EE-USA | 2018 | Ubisoft, Inc. San Francisco, CA, USA 08888 |
| Nintendo Wii disc | Just Dance 2019 Model RVL-S5EP-AUS | 2018 | Ubisoft, Inc. San Francisco, CA, USA 08888 |
| Nintendo Wii disc | Just Dance 2019 Model RVL-S5EP-EUR | 2018 | Ubisoft, Inc. San Francisco, CA, USA 08888 |
| Pachislot | Kai dou Mokushiroku Kaiji 4 | 2018 | Sammy Corp. Japan |
| Pachinko | Kakumeiki Valvrave | 2018 | Sankyo Tokyo, Japan |
| Nintendo Switch cart. | Kamen Rider - Climax Scramble Zi-O | 2018 | Bandai NAMCO Ent., Inc. |
| PC/MS-Windows DVD | Kami Rinjin no Ryuuji | 2018 | Matatabi Japan |
| PC/MS-Windows DVD | Kaminagi no Mori Youko Kitan | 2018 | Matatabi Japan |
| Google Play pack. | Kangaroo Evolution | 2018 | Tapps Games |
| Google Play pack. | Karaoke | 2018 | Gismart |
| PC/MS-Windows DVD | KataKoi Contrast - Way of Parting - Daiikkan | 2018 | Otomate Japan |
| Nintendo Switch cart. | Katamari Damacy Encore | 2018 | Bandai NAMCO Ent., Inc. |
| Nintendo Switch cart. | Katou Hifumi Kudan Kanshuu - Hifumin no Shogi Dojo | 2018 | Pocket Direct |
| Sony PlayStation 4 BR | Kemco RPG Selection Model PLJM-16177 | 2018 | Kemco, Ltd. |
| PC/MS-Windows pack. | Kindred Spirits on the Roof | 2018 | GOG sp. z o.o. |
| Colecovision cart. | King & Balloon Hb | 2018 | Team Pixelboy |
| PC/MS-Windows pack. | King and Assassins Model 603460 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | King Arthur II - The Role-Playing Wargame + Dead Legions | 2018 | GOG sp. z o.o. |
