Gwent: The Witcher Card Game is a free-to-play digital collectible card game developed and published by CD Projekt for Windows, PlayStation 4, and Xbox One in 2018, for iOS in 2019, for Android in 2020, and for macOS in 2021. The game is derived from the card game of the same name featured in Andrzej Sapkowski's The Witcher novels and playable in The Witcher 3: Wild Hunt video game. A single-player expansion released as a standalone title, titled Gwent: Rogue Mage, was released in 2022 to mixed reception.

A digital collectible card game (DCCG) or online collectible card game (OCCG) is a computer or video game that emulates collectible card games (CCG) and is typically played online or occasionally as a standalone video game. Many DCCGs are types of digital tabletop games and follow traditional card game-style rules, while some DCCGs use alternatives for cards and gameboards, such as icons, dice and avatars. Originally, DCCGs started out as replications of a CCG's physical counterpart, but many DCCGs have foregone a physical version and exclusively release as a video game, such as with Hearthstone.