Due to its long development time, the modification became notable for its delays on the status of its completion. Since then, attention to details, adapting the game to an improved version of the Source engine, and completely reworking the oft-derided final chapter of Half-Life (known as Xen) had lengthened the development efforts of the remake. The team originally targeted a 2009 release, but realized they had rushed to this point and reevaluated their efforts to improve the quality of the remake. Two teams wanted to improve on the Source remake and eventually merged to become Crowbar Collective. The first commercial version was published as an early-access release in May 2015, followed by a full release in March 2020 for Linux and Windows.īlack Mesa was developed in response to Half-Life: Source (2004), Valve's port of Half-Life to the Source engine, which lacked new features or improvements. Originally published as a free mod in September 2012, Black Mesa was approved for commercial release by Valve, the developers of Half-Life. It is a third-party remake of Half-Life (1998) made in the Source game engine. Black Mesa is a 2020 first-person shooter game developed and published by Crowbar Collective.