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Half-Life: Decay on Twitch — competition and audience

Valve· Sierra Entertainment· 2001· PS2
ShooterPlatformPuzzleScience fiction

Half-Life: Decay is an expansion pack for Valve Software's science fiction, first-person shooter video game Half-Life. Developed by Gearbox Software and published by Sierra Entertainment, Decay was released as part of the PlayStation 2 version of Half-Life. It is the third expansion pack for Half-Life, and like its predecessors, Decay returns to the setting and timeline of the original story, albeit portraying the story from the viewpoint of a different set of protagonists: two scientists working in the Black Mesa Research Facility. Decay is a cooperative multiplayer game, designed to be played by two people working together to pass through the game's levels.

What is Half-Life: Decay about?

The chapter begins with Gina and Colette arriving at the Anomalous Materials department right on time, in contrast to Gordon being late in Half-Life. They are greeted by a security guard, who comments on how today is "the big day" and they will be working with the "new guy, Dr. Freeman". He also explains that a recent system crash may have wiped them from the security system, so they'll have to sign back in in the next room. After getting scanned and re-added to the security system, the two Doctors head to the Anomalous Materials control room. Dr. Keller greets them but shows his annoyance at Freeman's lateness, saying "[he does] not understand what Kleiner sees in that boy". Dr. Rosenberg then enters the control room and displays his disapproval at the Anti-Mass Spectrometer being pushed to such a high power capacity for the analysis. However, he caves in after Dr. Keller says it is not his decision and if he doesn't wish to see the experiment he can go back to "[his] little labs over by the train yard". Cross and Green go down to their respective areas for the experiment. Gina goes to the delivery chute to push the sample up to Gordon, and Colette goes into the lower area of the test chamber to turn on the power and set it to 80%. After Gina fixes a small problem in which a crowbar was mysteriously jammed inside the delivery chute's mechanism, the sample is moved up to Freeman and the Resonance Cascade occurs. Cross and Green black out for a period of time, and wake up to see the lower part of the test chamber in shambles. They hear Dr. Keller and Rosenberg over the intercom, who discuss what to do. Dr. Rosenberg is intent on saving the personnel in the facility, while Dr. Keller wants to fix the tear created by the resonance cascade, saying they caused this mess and should be responsible for fixing it. After finding pistols and fighting their way through part of the laboratory, the two doctors make their way back to the control room. Keller and Rosenberg tell them they have reached an agreement. They will escort Dr. Rosenberg up to the surface to call the military, and Keller will stay below to assess the damage made to the equipment. With any luck, he'll be able to find what caused the experiment to go wrong and how they can put things right. Dr. Cross, Green and Rosenberg enter the elevator to get to the surface through the Hazard Course, and the mission ends.

Half-Life: Decay screenshot 1Half-Life: Decay screenshot 2Half-Life: Decay screenshot 3Half-Life: Decay screenshot 4Half-Life: Decay screenshot 5
0Room for youClosed off
1Live streamers
28People watching
#2Your spot at 10 viewersof 2

Should I stream Half-Life: Decay on Twitch?

0/100 · Closed off· 28 viewers per streamer on paper

Probably not. The only English stream here holds all 28 English viewers — once you take it out there is nothing left to reach.

The only English stream here holds all 28 English viewers. There is nothing left over for a second.

Almost nobody here is available to you — either a couple of streams hold the room, or nobody is watching in English, or the category is empty, or you would be buried.

This reads the room as it is right now — how much of the English-speaking audience is reachable and where you would land — not how many followers you would gain. That depends on you.

Where to buy

All plain links straight to the official stores. Some will become affiliate links later, and they’ll be marked with a ♥ when they are — you’ll always be able to tell, and the unmarked ones will always be there.

How many people stream Half-Life: Decay?

Right now

1 right now, to 28 viewers between them. Counted live from Twitch and refreshed every 15 minutes.

Is Half-Life: Decay too saturated on Twitch?

Not crowded, but not open either. Only 1 person is streaming Half-Life: Decay, and the one English stream holds all 28 English viewers — so the room is quiet because that audience is already committed, not because it is waiting for you.

Who you're up against

Biggest streams of 1 live right now

Is Half-Life: Decay any good?

Players score it 68 out of 100 from 23 ratings.

68Players23 ratings

Streamer reviews

No reviews yet. Reviews answer what critics can't: does chat engage, can you talk while playing, is there DMCA-risky music, does it produce clips. Sign in and yours would be the first.

Details

Released
Nov 14, 2001 · 25 years ago
Time to finish
Playing on Steam
Price
Modes
Co-operative, Split screen
Perspective
First person
Rated
ESRB M
Biggest stream
28 (100% of the category)
Typical stream
28 viewers (median)
Count accuracy
Exact — every live stream counted

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Updated Sep 9, 2026, 8:09 PM UTC