| PC/MS-Windows pack. |  Nightmares from the Deep 3 - Davy Jones | 2018 | GOG sp. z o.o. |
| Nintendo Switch cart. | Nightshade | 2018 | D3 Publisher, Inc. |
| Nintendo Switch cart. | Nil Admirari no Tenbin - Teito Genwaku Kitan Model LA-H-APT9A-JPN | 2018 | Idea Factory Co., Ltd. Japan |
| Google Play pack. | Ninja Dash | 2018 | Genera Games |
| Sinclair ZX Spectrum cass. | Ninja Gaiden Shadow Warriors Hb | 2018 | Potapov, Yuri |
| Sony PlayStation 4 BR | Ninki Seiyuu no Tsukuri Kata Model PLJM-16048 | 2018 | Entergram Japan |
| Nintendo Switch cart. | Nintendo Labo: Toycon 01 Variety Kit | 2018 | Nintendo Co., Ltd. Japan |
| Nintendo Switch cart. | Nintendo Labo: Toycon 02 Robot Kit Model LA-H-R-ADFVA-JPN | 2018 | Nintendo Co., Ltd. Japan |
| Nintendo Switch cart. | Nintendo Labo: Toycon 03 Drive Kit Model LA-H-R-ADFWA-JPN | 2018 | Nintendo Co., Ltd. Japan |
| Sinclair ZX Spectrum cass. | Nohzdyve Hb | 2018 | Tuckersoft |
| Nintendo Switch cart. | Nora to Koujo to Noraneko Heart HD Model LA-H-AQ2KA-JPN | 2018 | Harukaze Japan |
| Nintendo Switch cart. | Norn9 LOFN for Nintendo Switch | 2018 | Idea Factory Co., Ltd. Japan |
| PC/MS-Windows pack. | Northgard Model 466560 | 2018 | Steam Valve Corp. |
| Arcade Video game | Nostalgia Op.2 | 2018 | Konami Amusement Co., Ltd. Japan |
| PC/MS-Windows pack. | Not Tonight | 2018 | GOG sp. z o.o. |
| PC/MS-Windows CD | O Tanoshimi CD 132 | 2018 | WestSide Japan |
| PC/MS-Windows CD | O Tanoshimi CD 135 | 2018 | WestSide Japan |
| Nintendo Switch cart. | Oceanhorn - Monster of Uncharted Seas | 2018 | FDG Ent. GmbH & Co. KG |
| Nintendo Switch cart. | Octopath Traveler Model LA-H-AGY7A-JPN | 2018 | Square Enix Co., Ltd. Japan |
| Sinclair ZX Spectrum cass. | OctuKitty Hb | 2018 | Narwhal |
| PC/MS-Windows pack. | Odysseus Kosmos and his Robot Quest - Episode 1 Model 769920 | 2018 | Steam Valve Corp. |
| Nintendo Switch cart. |  Okami HD | 2018 | Capcom Co., Ltd. Japan |
| Nintendo Switch cart. | Okami Zekkeihan Model LA-H-AM7SA-JPN | 2018 | Capcom Co., Ltd. Japan |
| Sinclair ZX Spectrum cass. | Old Tower Hb | 2018 | RetroSouls |
| Pentagon cass. | Old Tower Hb | 2018 | RetroSouls |
| MSX cart. | Olion Hb | 2018 | Tiny Yarou |
| PC/MS-Windows pack. | Omensight | 2018 | GOG sp. z o.o. |
| Google Play pack. | One Piece - Bounty Rush | 2018 | Bandai NAMCO Ent., Inc. |
| Nintendo Switch cart. | One Piece - Pirate Warriors 3 - Deluxe Edition | 2018 | Bandai NAMCO Ent., Inc. |
| Arcade Video game | Ongeki | 2018 | SEGA Corp. |
| Nintendo Switch cart. | Onimusha Model LA-H-ALSPA-JPN | 2018 | Capcom Co., Ltd. Japan |
| PC/MS-Windows pack. | Opus Magnum | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Order of Battle - World War II | 2018 | GOG sp. z o.o. |
| Commodore C64 cass. | Organism Hb | 2018 | Psytronik Soft. |
| PC/MS-Windows pack. | Oriental Empires | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Orwell - Ignorance is Strength | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Orwell - Ignorance is Strength Season 2 Deluxe | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Outcast - Second Contact | 2018 | GOG sp. z o.o. |
| Nintendo Switch cart. | Overcooked! 2 | 2018 | Team 17 Soft., Ltd. |
| PC/MS-Windows pack. | Overcooked! 2 Model 728880 | 2018 | Steam Valve Corp. |
