This game has been Greenlit by the Community!

The community has shown their interest in this game. Valve has reached out to this developer to start moving things toward release on Steam.

Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Operation Black Mesa
2014 Kickoff Update
March 29, 2014 - Nick


Today we'd like to share some pretty major news with you. To find out more, click here[]!

Key topics:

  • Multiplayer Beta Release Q1 Cancelled
  • Multiplayer Progress
  • Singleplayer Campaign, Guard Duty
  • OBM: The Video Game?

Thanks for your support!
Tripmine Dev Team

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TheThodnern Aug 16, 2017 @ 6:03am 
Tristana Ya you have to pay for it. Blue Shift will also probably be Dlc or an expansion.
€ŁØ Mr.Worldwide Dec 17, 2015 @ 10:10am 
2015 no more update stats...waiting for Hl3...
Neour Oct 18, 2015 @ 5:02pm 
Will it be paid like Black Mesa?
ϟϟ Shadow President ϟϟ Sep 14, 2015 @ 4:01am 
this is bad ass it will be good
Unit Number: 382759-482-3846-362 Aug 16, 2015 @ 6:11pm 
good one
Unit Number: 382759-482-3846-362 Aug 16, 2015 @ 6:11pm 
€ŁØ Mr.Worldwide Aug 8, 2015 @ 7:47am 
this game will only release with half-life 3 ^^ so wait 45 years
Unit Number: 382759-482-3846-362 Jul 25, 2015 @ 1:27pm 
how long plz tall how much longer i cant take much more withing
[CG] The_Guardian™ Jul 16, 2015 @ 1:26pm 
Wait 3 years :)
Jack Burton Jun 21, 2015 @ 5:39pm 
how long untill it gets done?