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Kleiner's Lab

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Kleiner's Lab
General information

N/A, refurbished after the Seven Hour War


during the uprising, along with City 17


City 17, near the City 17 Trainstation


Combine occupation



Game information
  • d1_trainstation_01 (outside)
  • d1_trainstation_04 (outside)
  • d1_trainstation_05 (inside)
  • d1_trainstation_06 (outside)
  • d3_c17_01 (inside)
  • d3_c17_02 (outside)
"I must say, Gordon, you come at a very opportune time. Alyx has just installed the final piece for our resurrected teleport."
Isaac Kleiner[src]

Kleiner's Lab is a City 17 location seen during the chapters "A Red Letter Day" and Entanglement of Half-Life 2. It is a small laboratory hidden in the workshop of a decrepit warehouse, home to Dr. Isaac Kleiner for some time until the uprising in and eventual destruction of the city. The lab also houses Kleiner's teleport, which he has been developing as an alternative and safer route to Black Mesa East.


Alyx about to be sent to Black Mesa East through Kleiner's Lab teleport.

Half-Life 2[edit]

After a number of setbacks, Dr. Kleiner and Alyx Vance have finally completed the teleport shortly before Gordon Freeman arrives in the city. This is clearly no coincidence, the G-Man having planned it this way. Alyx and Gordon are to travel through the newly completed teleport to Black Mesa East. Alyx does so, and Gordon is about to do the same when Lamarr inadvertently damages the teleport, causing it to malfunction. Gordon ends up being teleported to and from several random locations such as the Wasteland, a lake where an Ichthyosaur is swimming, Black Mesa East, and even Wallace Breen's office in the Citadel, where he is recognized by his former administrator. With the teleport out of order, Gordon journeys to Black Mesa East by more conventional means.

The lab is seen once again much later in the game at the end of chapter 9a, Entanglement, when Alyx and Gordon teleport out of Nova Prospekt seconds before its teleport explodes, and arrive at Kleiner's Lab a full week later to find City 17 engulfed by Combine occupation of Earth. The lab, albeit apparently remaining undiscovered by the Combine, has suffered some battle damage and seems to be serving as an impromptu base of operations. There are also pieces of destroyed Manhacks on the table next to the mini teleport. Along with City 17, the lab is destroyed when the Citadel explodes.

The corkboard revealing some plot information and Easter eggs.

As in Black Mesa East later in the game, some plot information and Easter eggs can be found in the lab. Monitors show views of the city: when Barney gets in, he turns the biggest screen on, and the player can change the view until the G-Man can be seen. Nearby is a CD player indicating the name "Blue Scholars", which is the name of an alternative hip-hop band. One of its two members, Sabzi, is the cousin of Dhabih Eng, one of Kleiner's Lab designers. Two computer cases under the desk where the magnifying glass is bear respectively some tape on which "Carmel" and "Mesa" are written. Some sticky notes also show "find more watermelon for Lamarr", "Ask Eli - RE: manifold parameters" or "Massless field flux MUST self-limit!!!". A corkboard hanged on the door to the teleport room also shows some newspaper clips, such as one titled "End is Near" and another showing a picture of Eli and Azian Vance.[5] There are also other items such as a possible recipe for an "Indescribable Salad", a blueprint for the teleport, the photo of a black mesa (probably the mesa that gave its name to the facility), a portrait of Kleiner made by Alyx when she was a child,[6] the cover of the magazine Popular Scientist, where Kleiner can be seen at a younger age, with brown hair and sideburns,[7] and a drawing of a Headcrab from beneath, with arrows pointing at certain spots of its mouth, presumably related to the de-beaking of Lamarr. To the left of the corkboard is also a picture of the Black Mesa team before the Black Mesa Incident; the picture includes Gordon, a younger Kleiner and Eli as well as a figure with a blanked-out face (presumably Dr. Breen).[8] Along with the hula doll, Kleiner was able to take it with him to White Forest. There is also a retinal scanner similar to the ones used in Black Mesa, which must be used to access the teleport room.

Related Achievements[edit]

Half-Life 2
Hl2 break miniteleporter.png What cat? (5G)
Break the mini teleporter in Kleiner's Lab.

Behind the scenes[edit]

Concept art based on the map d1_lab_01, with a spherical version of Kleiner's teleport.
  • The earliest known map of Kleiner's Lab from the WC map pack, d1_lab_01 (its final name in the entities trigger_changelevel, but whose maps are found under the names demo_matgallery [used as entities showcase only], kleiner, kleiner2 kleiner_labtalk), last edited from October 2001 to December 2002, presents the current lab, but longer, with another larger room containing the original teleport, while the retail teleport room merely serves as a corridor linking both rooms, with the door located behind the retail teleport leading to the larger room with the teleport, and a big basement with pipes emitting steam. That larger room was partially recycled in Half-Life 2: Deathmatch, in the map Steam Lab. Gordon was also to reach the lab from its basement through tunnels starting in the surroundings of the Manhack Arcade (in the map subt, visually similar to the Seattle Underground), a path indicated by Barney he was to meet near the Manhack Arcade. They would meet again in the lab, Barney taking another path to preserve his cover as a CP.[2]
  • The E3 2003 video "Kleiner's Lab" features another version of the post-Nova Prospekt scene with different dialog between Kleiner and Alyx, and ending with Combots discovering the lab and a Strider blowing up the wall at the spot where the security monitors are in the final game.
  • A recent WC map pack map, d1_trainstation_01 (last edited June 2003), features a rough lab featuring the base of the teleport seen in Raising the Bar concept art for the Depot teleport.[2]
  • A working mini teleport located near the entrance can be operated by the player, capable of teleporting a cactus, or even larger objects found in the lab, in between two teleportation pads. An Orange Box Achievement, "What cat?", requires to break it.
  • Near Kleiner's desk is a computer monitor where the Windows 3.x "Starfield Simulation" ("ssstars.scr") screensaver can be seen running.
  • The model consisting of a desk with on it a shelf with monitors found in the main lab of Kleiner's Lab (map d1_trainstation_05) and the surveillance room at Black Mesa East (map d1_eli_01) features the reversed version of a 1907 photo of Mark Twain can be seen on the desk with the monitors shelf on it. The same model is used in both areas, with texture-based views of City 17 on the small monitors and a real-time view on the center monitor using the point_camera entity in a separate area and func_monitor for the monitor (Inside the City 17 Trainstation for Kleiner's Lab and the kitchen for Black Mesa East).
The usable mini teleport.
  • As seen in the WC map pack map kleiner_labtalk and the E3 Video "Kleiner's Lab", the Manhack parts seen next to the mini teleport when coming back to the lab were originally that of a Combot.[2]
  • Strangely enough, the lab is extremely close to the City 17 Trainstation introduced in the first chapter of Half-Life 2. Obvious security precautions would have rather placed the lab very far from a very crowded and security-enforced place like a train station; unless it was done on purpose, as if the Combine wouldn't look for a Resistance lab that close to the Trainstation. However, several levels originally set between the train station and the lab were cut from the final version, such as the Combine Factories and the Manhack Arcade.[1][2] Therefore, the original lab was much farther from the train station than it is now.
  • When viewing the preview image for the Black Mesa scientists photo frame model in the game files, it appears that the woman originally had no glasses and a black jacket. The "A.M.G." initials are also maroon instead of white, and without tape on it.[9]
  • The Half-Life 2: Deathmatch map Steam Lab draws some inspiration from both Kleiner's Lab and Black Mesa East, and includes a teleport as well.

The original lab and teleportation sequences[edit]

  • As heard in the dialogue files found in the playable Half-Life 2 leak sound files, the lab sequence at the start of Half-Life 2 was originally to be much different and much longer. Several sentences survived into the retail version, but were rerecorded.[10]
  • As heard in the files, Kleiner would not know about Gordon's return after his arrival at the lab, and Alyx would not be there. A very long dialogue would then ensue, giving more information about the general setting, Lamarr, the HEV Suit, etc., and some goofy dialogue between Kleiner and Barney, discussing what to do with Gordon. The teleportation sequence would then follow in the main lab where to original teleport was located:
  • In the main lab, Kleiner calls Elena Mossman, located at Kraken Base, and they start discussing the best place to send Gordon, in again a dialogue much longer than in the retail version.
  • After the team agrees that Eli's facilities are too primitive to make use of Gordon, being, according to Mossman, more suited to mechanics than research scientists, and that its teleport is in pieces, therefore not working, and that the only way to reach the place would be to go on foot through the dangerous Canals, Mossman suggests to send Gordon to Kraken Base instead, and by teleportation. Kleiner seems hesitant about it, while Barney expresses even more doubts in very pessimist remarks. While Kleiner pretends to be sure about the reliability of his equipment, Mossman is very determined, since she says to have run seven sequences without a single failure.
  • While the teleportation is being prepared, Gordon must do his part to set things up. Then the teleportation begins, and Barney thinks it is the best time to mention the issues about the cat they used for the previous test, saying that he had to turn the animal right side out again to make sure it was a cat (kept in the retail version for Alyx's teleportation, but minus the explanation), thus providing the information missing from the retail version. The teleportation then succeeds, and Mossman is able to introduce herself to Gordon and compliment him when he is still in the teleport instead of releasing him right away. At Kleiner's Lab, Lamarr jumps into the teleport like in the retail version, disrupting the connection between the two teleports and bringing back Gordon behind a window near Kleiner's Lab (like in the retail version) and damaging both teleports.
  • It is also suggested by Barney's sentences that something happens to Kleiner, dying or being hurt and left unconscious, since he ceases to talk after he approaches the teleport, worried by Lamarr's fate. The failure having blown their cover and the lab's roof about to cave in, Gordon finds himself forced to journey to Eli's lab on foot. Barney leads him to the Canals, where the next chapter begins, and leaves at some point, like in the retail version.[10]
  • Kraken Base being cut from the storyline, the choice of the destination was simplified, and thus the dialogues.


  • The workshop style of Kleiner's Lab is reminiscent of Seth Brundle's apartment/lab in the 1986 film The Fly, also featuring teleportation mishaps. Furthermore, the original version of the film, released in 1958, also features a mishap with a cat, when it is used as the first living being to be tested by André Delambre. Barney mentioning a cat mishap is probably a reference to that scene, although in the film the cat does not reappear and is lost somewhere between the two teleports, while the baboon replacing it in the remake fits better Barney's remark in the original teleportation sequence, the animal being turned into a dying, deformed monster.
  • Alyx's pressing of the buttons on the vending machine entrance is reminiscent of the "Shave and a Haircut" tune, with the knocking on the side being the "two bits".
  • The motherboard texture inside lab's computer props is based on the ASUS P2B model. The expansion cards actually use the back side of the same board.[11]



Concept art[edit]


Cut models and textures[edit]


List of appearances[edit]

Main games[edit]


See also[edit]


External links[edit]

Preceded by
City 17 Trainstation
Half-Life 2 story arc journey (1) Succeeded by
Station 1
Preceded by
Half-Life 2 story arc journey (2) Succeeded by
Overwatch Nexus