Event
AMA update - Part 3
We’re excited to share the final part of our Ask Me Anything event! This one is a little different from the previous two entries. Instead of another long read, this time we´re bringing you a video. Several team members…
Steam
Operation: Black Mesa
Also known as Operation: Black Mesa, obm, operation black mesa
Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.
Last update
1 Jun 2026
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- May 2026
- Greetings everyone! It’s time to answer some more questions, isn´t it? Think of this as a small appetizer before we serve you the main course a bit later. Just like in Part 1 of our AMA update, we’re also including a bi…Security
- April 2026
- We’re back as promised and starting our AMA update series with a brief look at what we’ve been working on behind the scenes. Our team is currently focused on two major goals — one of them being a fully playable build of…Store
- March 2026
- February 2026 updateGreetings from Tripmine Studios to our fellow fans! We are back with another small update on Operation: Black Mesa. The project is steadily taking shape, and we’re excited to share what’s happening behind the scenes. Fo…
- December 2025
- Winterfest 2025After a full year, we are excited to return to our community with fresh updates, new in‑game showcases, and most importantly, our brand‑new website. Your support has carried us this far, and we’re thrilled to finally sh…
- July 2025
- Welcome to Black Mesa - Laser puzzle (DEV.BLOG)In this little dev. blog about the construction of the laser level, we would like to give an insight into the collaboration of our work and the construction of a level in which Opposing force first real puzzle was intro…
- December 2024
- WinterFest 2024 Update🎄 ❄️ Winter Fest is Finally Here! 🎄 ❄️ We are thrilled to share with you this year's Christmas update. Including a new gameplay video, a walk around inside the Osprey, new 3D models, beautiful level designs, amazing a…
- WinterFest is coming to Operation Black Mesa!❄️ 🎄 Operation Black Mesa: Winter Fest is near!🎄 ❄️ Greetings, everyone! Winter comes to Tripmine Studios, and in the spirit of the season, we warmly invite you to join us on Christmas morning for our annual media upd…
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