Black Mesa

Black Mesa

700 ratings
On a Rail Uncut
File Size
468.887 MB
Jan 24, 2016 @ 5:34pm
Jan 5 @ 10:09pm
11 Change Notes ( view )

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On a Rail Uncut

Chicken Chonnage's (previously known as Text FAMGUY1, real name: Chon Kemp, now a Black Mesa Developer) project to finish "uncutting" Black Mesa. This mod extends Black Mesa's On a Rail back to the length of the chapter in HL1, by adding 4 new maps in between the existing Black Mesa ones.

IMPORTANT: You must start a new game to use this (though you can start from any chapter you like) - do not use existing saves!



  • The Black Mesa dev team for creating such an astonishing game with fantastic maps! The astounding quality of their maps really inspired me to become a better mapper.
  • Valve for creating the amazing Half-Life universe in the first place, and their groundbreaking series.
  • Dejan for writing the pieces "The Year of Death," and "Dark Skies," used on A2 and B2 respectively - written for Community Project 12. Brilliant bits of work. Hopefully my maps do your work justice.
  • The Empire (Andrew Bastian) for writing the piece "Lights Out," for me; a beautiful chill piece I use during the ambush on B1. This piece is still a work in progress, feedback is welcomed - but be nice!
  • Impetuous for skinning the construction and office workers (skinned from the BM Dev team's original security guard and inspired by Mr Someguy's attempt) found throughout OaR Uncut. Great work!
  • dead-brushes and KeepWaiting from DeviantArt deserve credit for the blood textures used on the office workers.
  • Mr Someguy for providing me with a working hexed model.
  • Maestro Fenix for creating part of the skins for the construction worker model, and also helping me solve several annoying bugs with my custom models. Thanks a lot!
  • The community at large for providing me with tonnes of feedback and giving me tips and tricks on how to make things work and how to design areas. This project wouldn't be where it is today without you guys.
  • Everyone involved in the feedback for ST Uncut. Had ST Uncut not been successful, which undoubtedly would not have happened without the community's support, I would definitely not have been inspired enough to move onto this project.
Popular Discussions View All (10)
May 18 @ 2:40pm
Will this be added to the official update, just like the "Surface Tension" maps were?
May 31, 2016 @ 9:29am
Bug Report
Mikel S
Jul 12, 2016 @ 7:35am
More bugs ( ͡° ͜ʖ ͡°)
Artorias of the abyss
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Mzx May 2 @ 4:44pm 
para poder Jugarlo ahi que cargar el mapa "map bm_c2a2a1"
Terminator Apr 10 @ 12:11pm 
great job
Captain Hamstarr Mar 21 @ 12:20am 
No, say if someone doesn't want to download mods or if they want to play it in one session but do not find out about the mod until after OaR. You see, unless they must pay to add DLC, there isn't really any harm in making it official DLC.
Ghost Leviathan Mar 19 @ 8:14pm 
guys, you can just install the mod and it won't hinder your achievements and stuff if thats what your worried about workshop mods do not stop achievements, sv cheats does.
SomeDude Mar 15 @ 2:47pm 
Should be in the game!
Sirrion Sunblaze Mar 13 @ 7:27am 
Free DLC, my man, not paid.
Malidictus Mar 13 @ 4:33am 
Because people would flip their lids even worse than they did when Black Mesa released a paid version on Steam. Not only does this bring back peoples rage hardon for paid mods, but it also takes something previously free and offers it for money.

Mind you, I'd pay for it, myself. Only reason I held off on buying Black Mesa for as long as I did was BECAUSE the two Uncut chapters weren't applicable initially.
Captain Hamstarr Mar 13 @ 4:25am 
I understand why you don't include it in the official game, but why not make it free dlc, it is the best of both worlds.
Timbits #music Mar 12 @ 8:29am 
Damn, just played though, loved the extra mapping. Great addon. I'd say add these in the final release along with Xen.
Sirrion Sunblaze Mar 5 @ 3:30pm 
Surface Tension is already uncut.