| PC/MS-Windows pack. |  Classic Card Games 3D Model 941920 | 2018 | Steam Valve Corp. |
| Google Play pack. | Clicker Knight | 2018 | Iron Horses Games LLC |
| PC/MS-Windows pack. | Climb Model 876900 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - Cross of Iron | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat - Gateway to Caen | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat - Last Stand Arnhem | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat - Last Stand Arnhem Model 936530 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - Modern Tactics | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat - Panthers in the Fog | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat 2 - A Bridge Too Far | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat 3 - The Russian Front | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat 4 - The Battle of the Bulge | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Combat 5 - Invasion - Normandy - Utah Beach to Cherbourg | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close Your Eyes - Anniversary Remake Model 706710 | 2018 | Steam Valve Corp. |
| Nintendo Switch cart. | Closed Nightmare Model LA-H-ANZ9A-JPN | 2018 | Nippon Ichi Soft., Inc. Japan |
| PC/MS-Windows pack. | Clue/Cluedo - The Classic Mystery Game Model 794800 | 2018 | Steam Valve Corp. |
| Nintendo Switch cart. | Code of Princess EX | 2018 | Nicalis |
| Nintendo Switch cart. |  Code of Princess EX Model LA-H-AF86B-JPN | 2018 | Pikii Japan |
| Nintendo Switch cart. | Code:Realize - Saikou no Hanataba Model LA-H-APUBA-JPN | 2018 | Idea Factory Co., Ltd. Japan |
| MSX cart. | Codename: Intruder Hb | 2018 | Repro Factory |
| PC/MS-Windows pack. | Cognizer Model 711690 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cold War Model 834490 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cold Waters | 2018 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Colina - Legacy Model 371650 | 2018 | Steam Valve Corp. |
| Google Play pack. | Color Bump | 2018 | Good Job Games |
| Google Play pack. | Color by Number | 2018 | Fun Games for Free |
| PC/MS-Windows pack. | Color By Numbers - Animals Model 954410 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Color By Numbers - Christmas Model 954400 | 2018 | Steam Valve Corp. |
| Google Play pack. | Color Tube | 2018 | Lion Studios |
| PC/MS-Windows pack. | Coloring Book Model 984590 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Coloring Pixels Model 897330 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Colour Box Model 810690 | 2018 | Steam Valve Corp. |
| Google Play pack. | Combat Assault | 2018 | GDCo. |
| Google Play pack. | Command & Conquer - Rivals | 2018 | Electronic Arts CA, USA 14633 |
| Google Play pack. | Commander Battle | 2018 | Mobirix |
| PC/MS-Windows pack. | Community College Hero - Knowledge Is Power Model 847290 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Comrades and Barons - Solitaire of Bloody 1919 Model 787710 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Conan Exiles Model 440900 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Conarium | 2018 | GOG sp. z o.o. |
| Google Play pack. | Connect the Pops! | 2018 | Popcore Games |
