And it’s on Steam feed. I seriously freaked out for a moment.
https://www.pcgamer.com/black-mesa-mod-wont-get-xen-levels/?ns_campaign=article-feed&ns_mchannel=ref&ns_source=steam&ns_linkname=0&ns_fee=0
Edit: deleted it.
It’s still a community-made mod, only sold on Steam.
It’s a game. It’s standalone, and uses practically nothing of the game it started as a mod of.