Black Mesa is a action, adventure, indie game developed by Crowbar Collective. Released in 2020, this title has become a must-play for fans of the genre. Relive Half-Life. Relive Half-Life Black Mesa is the fan-made reimagining of Valve Software’s Half-Life . Black Mesa: Definitive Edition Update 1.5 brings together all the improvements to graphics and gameplay across 15 years of development to create the final version of Black Mesa. There has never been a better time to pick up the crowbar and play! Single Player Campaign You are Gordon Freeman, a theoretical physicist at the Black Mesa Research Facility. With a Metacritic score of 84, Black Mesa has received critical acclaim from both players and reviewers alike.