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Half-Life: Opposing Force on Twitch — competition and audience

Gearbox Software· Sierra Entertainment· 1999· Linux · PC · Mac
ShooterPlatformPuzzleScience fictionThrillerWarfare

Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.

Trailer

What is Half-Life: Opposing Force about?

Opposing Force opens with Shephard riding on a V-22 Osprey with his squad. His squad discuss their deployment, somewhat irritated that they have not been told what they are being deployed for. However, as they are nearing their Landing Zone at Black Mesa, airborne alien creatures attack the Osprey formation, causing Shephard's Osprey to crash land. Shephard regains consciousness in a Black Mesa medical bay, tended to by the science team, learning that the Marines are being steadily beaten by the alien forces from Xen and orders have come through to pull out. Consequently, Shephard departs to reach an extraction point and escape the facility. However, Shephard is prevented from reaching the extraction point by the enigmatic G-Man, forcing the evacuation craft to leave without him. Other Marines who have also been left behind team up with Shephard and attempt to reach another extraction point near Black Mesa's Lambda Complex, but en route they come under attack from black operations units seeking to thoroughly contain the situation and eliminate all survivors. Shephard makes it to the Lambda Complex alive, and briefly sees Gordon Freeman as the latter teleports to Xen in the final stages of Half-Life. To escape the teleportation chamber, Shephard is forced to enter a separate portal, briefly taking him to Xen before depositing him in an entirely different area of the facility. The facility is now heavily damaged, and it soon becomes clear that a new alien race, Race X, has exploited the situation to mount a localized invasion, attacking both human and Xen forces in Black Mesa indiscriminately. Fighting between the black operations units and Race X quickly intensifies. Shephard soon encounters more stranded Marine units in the wreckage of the base, and tries to break through the black operations units to reach an escape point past the facility's storage unit, but meets heavy resistance from both Race X and the black operations units. A surviving Black Mesa security guard reveals to Shephard that the black operators intend to detonate a tactical nuclear weapon in the base, thereby totally sealing it off and killing everything in it. After successfully neutralizing the guarding black operations unit, Shephard disarms the device and proceeds to the nearby storage areas, intent on escape. However, the G-Man rearms the device as Shephard departs. The storage unit has become a thick battleground between Race X and the black operation units, and although Shephard manages to evade them, he is informed by another security guard that something very large is coming through an alien portal blocking the exit path. At the portal, Shephard discovers a gene worm, a massive creature facilitating the Race X invasion. Shephard is able to kill the creature, but just afterwards he is teleported onto an Osprey by the G-Man. As the G-Man congratulates Shephard on his accomplishments, the nuclear device detonates in the background, destroying Black Mesa. The game closes with the G-Man detaining Shephard someplace where he can tell no one of what he has seen and cannot be harmed, pending further evaluation.

Half-Life: Opposing Force screenshot 1Half-Life: Opposing Force screenshot 2Half-Life: Opposing Force screenshot 3Half-Life: Opposing Force screenshot 4Half-Life: Opposing Force screenshot 5
0Room for youClosed off
1Live streamers0 in English
1People watching
#1Your spot at 10 viewersof 2

Should I stream Half-Life: Opposing Force on Twitch?

0/100 · Closed off· 1 viewers per streamer on paper

Probably not. One stream holds 100% of the 1 people watching Half-Life: Opposing Force, leaving about 0 for everyone else — and the category empties when that streamer logs off.

One stream holds 100% of the 1 viewers here, leaving about 0 for everyone else. When they log off, the category empties.

Only 0 of the 1 viewers here (0%) are watching in English. 0 of the 1 live streams are in English.

Almost nobody here is available to you — either one stream holds the room, or the category is empty, or you would be buried.

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

What time to stream this

Most room so far around 1pm UTC 11 viewers per streamer.

1 of 24 hours measured over 1 day. The rest fill in as they are seen. Counts ignore each category’s biggest stream, so one star can’t make an empty hour look busy. Times in UTC until your clock loads.

What day to stream this

Only 1 day of readings so far — a weekday pattern needs at least 7. It fills in on its own.

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: Opposing Force?

Daily averages since 4 September 2026

1 right now, to 1 viewer between them. 0 of them are streaming in English. Counted live from Twitch and refreshed every 15 minutes.

People watchingLive streamers
09-0409-06

Is Half-Life: Opposing Force too saturated on Twitch?

Not crowded, but not open either. Only 1 person is streaming Half-Life: Opposing Force, and that single stream holds 100% of the 1 viewers — so the room is quiet because the 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: Opposing Force any good?

Players score it 75 out of 100 from 401 ratings, and critics 70 out of 100.

70Critics1 outlets
75Players401 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 10, 1999 · 27 years ago
Time to finish
Playing on Steam
Price
Modes
Single player, Multiplayer
Perspective
First person
Rated
ESRB M
Biggest stream
1 (100% of the category)
Typical stream
1 viewers (median)
Count accuracy
Exact — every live stream counted

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Updated Sep 6, 2026, 9:53 AM UTC