Surface Tension (Black Mesa)
Surface Tension is the twelfth chapter of 
Black Mesa.
It takes place on the surface of the Black Mesa Research Facility.
Overview
Surface Tension happens near the middle of the game when the military still has control over the facility.
NPCs
The player will encounter largely the same enemies as the previous chapters, such as Human Grunts, Vortigaunts, Headcrabs, and occasionally Scientists or Security Guards.
Plot
During Surface Tension, Gordon Freeman starts his journey to the lambda labs while the military hunts him down.
Maps
- bm_c2a5a
- bm_c2a5b
- bm_c2a5c
- bm_c2a5d
- bm_c2a5e
- bm_c2a5f
- bm_c2a5g
- bm_c2a5h
- bm_c2a5i
Gallery
The Hydro-Electric Power Facility
Cliffside view of the mesa
A minefield
A tank
A room filled with tripmines
Area where Gordon must use a tactical map to take down a Gargantua
Image Credits: https://steamcommunity.com/sharedfiles/filedetails/?id=1920599249
| Black Mesa Chapters
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| Black Mesa Inbound bm_c0a0a |
Anomalous Materials bm_c1a0a |
Unforeseen Consequences bm_c1a1a |
Office Complex bm_c1a2a |
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| "We've Got Hostiles!" bm_c1a3a |
Blast Pit bm_c1a4a |
Power Up bm_c2a1a |
On a Rail bm_c2a2a |
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| Apprehension bm_c2a3a |
Residue Processing bm_c2a4a |
Questionable Ethics bm_c2a4e |
Surface Tension bm_c2a5a |
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| "Forget About Freeman!" bm_c3a1a |
Lambda Core bm_c3a2a |
Xen bm_c4a1a |
Gonarch's Lair bm_c4a2a |
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| Interloper bm_c4a3a |
Nihilanth bm_c4a4a |
Endgame bm_c5a1a |
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