How many people are playing Zombie Panic! Source right now?

11 people are playing Zombie Panic! Source on Steam right now, making it the 6416th most played game on Steam. In the last 24 hours it peaked at 36 players. The number updates every few minutes.

What is Zombie Panic! Source's all-time peak player count?

Zombie Panic! Source's highest concurrent player count on Steam is 2,999, reached in October 2008.

Is Zombie Panic! Source good? What do Steam reviews say?

84% of 7,860 Steam user reviews are positive (Very Positive).

How much does Zombie Panic! Source cost on Steam?

Zombie Panic! Source is free to play on Steam.

Does Zombie Panic! Source work on Steam Deck?

Zombie Panic! Source is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Zombie Panic! Source

by Zombie Panic! Team · Released Oct 3, 2008

Steam Deck PlayableLinux & Deck: Silver

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Players now

#6,416

▲ 22.2%vs 24h ago · updates every minute

Review score

84% positive

Very Positive7,860 reviews

Owners (est.)500K–1M

24h peak

Highest seen2,999

Oct 200818.1 years ago

Price on Steam

Free

RisingSteadyFalling

Players +22.2% in the last 24 hoursUpdated 12:28 UTC · tracking since 2012-07-01

Concurrent players

Last 7 days

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Players onlineSteam sale started

Media & details

Screenshots, achievements, specs and price history from Steam.

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Where to buy

Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.

Steam Official

Prices update every 6 hours

Free

Buy

Other authorized stores

No authorized Steam key store lists this game right now.

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Editions and bundles on Steam

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Reviews

84% positive of 7,860 · Very Positive · Live from Steam

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Steam Deck

Works, but may need extra effort. Results from Valve's own testing.

Steam Deck Playable

!Default controller config not fully functional
!Controller glyphs do not match deck device
!Text input does not automatically invokes keyboard
✓Interface text is legible
✓Default configuration is performant
iExternal controllers not supported primary player

Steam Deck

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Patches & builds

Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.

Oct 31, 2026, 9:29 AM UTC
Build 26335113the current build when we started tracking7.9 GB on Windows

Patch notes

Oct 31, 2026
Patchv3.3.1 Update Released & Characters Remake Previews
Hello everyone! We're so glad to hear you've been enjoying the v3.3 update and the all positive feedback we received on Discord, forums and in-game throughout these past months! This greatly helps us to decide what kind of balance changes to make and to contin…
Oct 30, 2025
Patchv3.3 Halloween Update Released
Hello everyone! We're very excited to introduce the long-awaited v3.3 patch and to announce our plans to migrate Zombie Panic! Source to the latest 'TF2 SDK' update-branch!What does this mean?Back in February, Valve released a massive update to the Source SDK …
Nov 16, 2024
PatchCelebrating 20 Years of Source with a v2.4 Gamenight
On Nov 16th, 2004, Valve released a sequel to their most acclaimed franchise Half-Life 2. Debuting their latest engine technology: Source ® - founding the path to innumerous creation of community mods since. The former Zombie Panic Team didn't waste the opport…
Oct 24, 2024
Patchv3.2.9 Update Released
We're shipping a small update today containing bugfixes reported by the community from previous patch, few Angelscript additions and other miscs. Full details in the patch notes below: Changelog Angelscript Added "Utils.RemoveImage". Fixed "Globals.SetAutoBala…
Apr 19, 2024
Patchv3.2.8 Update Released
Hey everyone! Today, we're bringing some interesting changes to the game focused heavily on weapon balance tweaks, additional entities for mappers, Angelscript improvements, map adjustments, bug fixes as usual and other miscellaneous fixes. Two maps in questio…
Mar 30, 2023
Patchv3.2.7 Update Released
We're releasing a very small patch today, focused mostly on code cleanup, few UI fixes, supershorty reload animation changes and other bugfixes as usual. Full details below: Changelog Angelscript Added "CBaseEntity@ CZP_Player.GetInfectedBy()" method which ret…

Other news (5)

Mar 10, 2026
Zombie Panic is now available on Steam!
After more than two decades, we're very proud to announce the classic survival-horror modification Zombie Panic! is now available to play on Steam! Go there and blow their brainz out!We wish to thank everyone who has contributed and playtested the mod over the…
Dec 9, 2025
The Future of Zombie Panic! Franchise
Hi everyone! I'm 'Tabajara' (team lead & coordinator) and I'm here on behalf of the Zombie Panic! Team for this announcement to talk about the future plans for the game, what is coming next for the franchise as a whole, and how this involves the community. Let…
Jul 3, 2024
Zombie Night Month (ZP1 and ZPS)
Hello everyone! We're bringing you another series of community gamenight events, but this time on both Zombie Panic 1 and Zombie Panic! Source on July 6th and 13rd. We're partnering with LambdaGeneration platform who will be hosting and streaming the 'Zombie N…
Nov 19, 2023
Celebrating Half-Life's 25th Anniversary with a ZP1 Gaming Event
On November 19th, 1998, Valve debuted with the release of their first revolutionary shooter Half-Life. Since then, the modding community has released lots of memorable HL1 mods - one of them being the old gem Zombie Panic 1, released on Halloween 2004 by the f…
Jan 14, 2023
ZPS History and Community News
Happy New Year folks! We hope you had a great 2022 and have been enjoying the v3.2.5 update so far! Today we'd like to commemorate a special day (12-28-2022) when ZPS turned 15 years old! What started as a simple HL2 modification, ported to a standalone game a…

Patches & builds

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History

What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.

Review score: 84% on 2026-11-01 → 84% today (7,860 reviews)

No changes recorded yet.

History

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DLC

1 item on Steam, newest first.

Zombie Panic! Source Official Soundtrack
Free97% positive

DLC

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Trading cards

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Zombie Panic! Source player count and quick facts

How many people are playing Zombie Panic! Source right now?: 11 people are playing Zombie Panic! Source on Steam right now, making it the 6416th most played game on Steam. In the last 24 hours it peaked at 36 players. The number updates every few minutes.
What is Zombie Panic! Source's all-time peak player count?: Zombie Panic! Source's highest concurrent player count on Steam is 2,999, reached in October 2008.
Is Zombie Panic! Source good? What do Steam reviews say?: 84% of 7,860 Steam user reviews are positive (Very Positive).
How much does Zombie Panic! Source cost on Steam?: Zombie Panic! Source is free to play on Steam.
Does Zombie Panic! Source work on Steam Deck?: Zombie Panic! Source is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Live data from Steam, tracked by SteamPlayerBase.