The Game Census
Zombie Panic! Source cover art

Zombie Panic! Source

Zombie Panic! Team · 2008-10-03

Steam

ActionAdventureCasualIndieFree To Play

Modes: Multiplayer, Co-operative

Releases: Oct 03, 2008 (PC (Microsoft Windows)), Dec 28, 2007 (Linux)

Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification.

14
playing now
85%
positive of 7.9k reviews
Very Positive
steam rating
500,000–1,000,000
owners (SteamSpy est.)
61/100
IGDB user rating (5 ratings)
bronze
deck/linux tier (ProtonDB)
Free
steam price (US)

14 players in-game as of 2026-08-30 02:00 UTC (census sample)

Zombie Panic! Source is a cooperative survival-horror Half-Life 2 first-person shooter modification. It is the sequel to the Half-Life mod Zombie Panic. Set in the middle of a zombie apocalypse, players start as a small group of survivors attempting to stay alive. Each map will have its own objectives to complete and win the round or survive by a period of time.

Health check

Quietly active
  • · 14 players in-game at the last census sample.
  • · 123 reviews in the last 8 weeks (~15/week).
  • · Review velocity down 15% vs the prior 8 weeks.
  • · Top 13% of 10,791 Action games in the census by review count.

Health tier since 2026-08-27

Review momentum

PositiveNegative
10810820182026Week of 2018-01-01: 108 positiveWeek of 2018-01-01: 53 negativeWeek of 2018-02-01: 82 positiveWeek of 2018-02-01: 44 negativeWeek of 2018-03-01: 67 positiveWeek of 2018-03-01: 22 negativeWeek of 2018-04-01: 55 positiveWeek of 2018-04-01: 28 negativeWeek of 2018-05-01: 67 positiveWeek of 2018-05-01: 37 negativeWeek of 2018-06-01: 58 positiveWeek of 2018-06-01: 39 negativeWeek of 2018-07-01: 70 positiveWeek of 2018-07-01: 28 negativeWeek of 2018-08-01: 49 positiveWeek of 2018-08-01: 25 negativeWeek of 2018-09-01: 46 positiveWeek of 2018-09-01: 21 negativeWeek of 2018-10-01: 27 positiveWeek of 2018-10-01: 9 negativeWeek of 2018-11-01: 49 positiveWeek of 2018-11-01: 7 negativeWeek of 2018-12-01: 31 positiveWeek of 2018-12-01: 12 negativeWeek of 2019-01-01: 32 positiveWeek of 2019-01-01: 6 negativeWeek of 2019-02-01: 33 positiveWeek of 2019-02-01: 7 negativeWeek of 2019-03-01: 23 positiveWeek of 2019-03-01: 6 negativeWeek of 2019-04-01: 30 positiveWeek of 2019-04-01: 12 negativeWeek of 2019-05-01: 30 positiveWeek of 2019-05-01: 7 negativeWeek of 2019-06-01: 46 positiveWeek of 2019-06-01: 18 negativeWeek of 2019-07-01: 49 positiveWeek of 2019-07-01: 6 negativeWeek of 2019-08-01: 33 positiveWeek of 2019-08-01: 13 negativeWeek of 2019-09-01: 22 positiveWeek of 2019-09-01: 5 negativeWeek of 2019-10-01: 27 positiveWeek of 2019-10-01: 7 negativeWeek of 2019-11-01: 64 positiveWeek of 2019-11-01: 3 negativeWeek of 2019-12-01: 42 positiveWeek of 2019-12-01: 7 negativeWeek of 2020-01-01: 39 positiveWeek of 2020-01-01: 8 negativeWeek of 2020-02-01: 27 positiveWeek of 2020-02-01: 7 negativeWeek of 2020-03-01: 44 positiveWeek of 2020-03-01: 8 negativeWeek of 2020-04-01: 48 positiveWeek of 2020-04-01: 13 negativeWeek of 2020-05-01: 42 positiveWeek of 2020-05-01: 7 negativeWeek of 2020-06-01: 32 positiveWeek of 2020-06-01: 9 negativeWeek of 2020-07-01: 41 positiveWeek of 2020-07-01: 12 negativeWeek of 2020-08-01: 29 positiveWeek of 2020-08-01: 6 negativeWeek of 2020-09-01: 28 positiveWeek of 2020-09-01: 3 negativeWeek of 2020-10-01: 60 positiveWeek of 2020-10-01: 5 negativeWeek of 2020-11-01: 47 positiveWeek of 2020-11-01: 6 negativeWeek of 2020-12-01: 36 positiveWeek of 2020-12-01: 8 negativeWeek of 2021-01-01: 39 positiveWeek of 2021-01-01: 4 negativeWeek of 2021-02-01: 28 positiveWeek of 2021-02-01: 5 negativeWeek of 2021-03-01: 25 positiveWeek of 2021-03-01: 7 negativeWeek of 2021-04-01: 23 positiveWeek of 2021-04-01: 10 negativeWeek of 2021-05-01: 24 positiveWeek of 2021-05-01: 7 negativeWeek of 2021-06-01: 19 positiveWeek of 2021-06-01: 10 negativeWeek of 2021-07-01: 24 positiveWeek of 2021-07-01: 14 negativeWeek of 2021-08-01: 35 positiveWeek of 2021-08-01: 13 negativeWeek of 2021-09-01: 25 positiveWeek of 2021-09-01: 6 negativeWeek of 2021-10-01: 28 positiveWeek of 2021-10-01: 6 negativeWeek of 2021-11-01: 22 positiveWeek of 2021-11-01: 7 negativeWeek of 2021-12-01: 23 positiveWeek of 2021-12-01: 6 negativeWeek of 2022-01-01: 30 positiveWeek of 2022-01-01: 9 negativeWeek of 2022-02-01: 36 positiveWeek of 2022-02-01: 7 negativeWeek of 2022-03-01: 28 positiveWeek of 2022-03-01: 4 negativeWeek of 2022-04-01: 20 positiveWeek of 2022-04-01: 4 negativeWeek of 2022-05-01: 12 positiveWeek of 2022-05-01: 9 negativeWeek of 2022-06-01: 24 positiveWeek of 2022-06-01: 3 negativeWeek of 2022-07-01: 23 positiveWeek of 2022-07-01: 3 negativeWeek of 2022-08-01: 22 positiveWeek of 2022-08-01: 9 negativeWeek of 2022-09-01: 20 positiveWeek of 2022-09-01: 4 negativeWeek of 2022-10-01: 22 positiveWeek of 2022-10-01: 6 negativeWeek of 2022-11-01: 23 positiveWeek of 2022-11-01: 4 negativeWeek of 2022-12-01: 26 positiveWeek of 2022-12-01: 2 negativeWeek of 2023-01-01: 35 positiveWeek of 2023-01-01: 5 negativeWeek of 2023-02-01: 17 positiveWeek of 2023-02-01: 4 negativeWeek of 2023-03-01: 19 positiveWeek of 2023-03-01: 5 negativeWeek of 2023-04-01: 15 positiveWeek of 2023-04-01: 2 negativeWeek of 2023-05-01: 14 positiveWeek of 2023-05-01: 6 negativeWeek of 2023-06-01: 16 positiveWeek of 2023-06-01: 9 negativeWeek of 2023-07-01: 18 positiveWeek of 2023-07-01: 6 negativeWeek of 2023-08-01: 18 positiveWeek of 2023-08-01: 12 negativeWeek of 2023-09-01: 10 positiveWeek of 2023-09-01: 6 negativeWeek of 2023-10-01: 20 positiveWeek of 2023-10-01: 8 negativeWeek of 2023-11-01: 28 positiveWeek of 2023-11-01: 7 negativeWeek of 2023-12-01: 24 positiveWeek of 2023-12-01: 4 negativeWeek of 2024-01-01: 23 positiveWeek of 2024-01-01: 5 negativeWeek of 2024-02-01: 20 positiveWeek of 2024-02-01: 7 negativeWeek of 2024-03-01: 20 positiveWeek of 2024-03-01: 2 negativeWeek of 2024-04-01: 28 positiveWeek of 2024-04-01: 7 negativeWeek of 2024-05-01: 16 positiveWeek of 2024-05-01: 2 negativeWeek of 2024-06-01: 18 positiveWeek of 2024-06-01: 9 negativeWeek of 2024-07-01: 17 positiveWeek of 2024-07-01: 5 negativeWeek of 2024-08-01: 19 positiveWeek of 2024-08-01: 9 negativeWeek of 2024-09-01: 16 positiveWeek of 2024-09-01: 5 negativeWeek of 2024-10-01: 15 positiveWeek of 2024-10-01: 5 negativeWeek of 2024-11-01: 18 positiveWeek of 2024-11-01: 2 negativeWeek of 2024-12-01: 17 positiveWeek of 2024-12-01: 3 negativeWeek of 2025-01-01: 9 positiveWeek of 2025-01-01: 6 negativeWeek of 2025-02-01: 10 positiveWeek of 2025-02-01: 2 negativeWeek of 2025-03-01: 14 positiveWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 12 positiveWeek of 2025-04-01: 2 negativeWeek of 2025-05-01: 10 positiveWeek of 2025-05-01: 1 negativeWeek of 2025-06-01: 21 positiveWeek of 2025-06-01: 5 negativeWeek of 2025-07-01: 15 positiveWeek of 2025-07-01: 2 negativeWeek of 2025-08-01: 17 positiveWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 7 positiveWeek of 2025-09-01: 2 negativeWeek of 2025-10-01: 13 positiveWeek of 2025-10-01: 4 negativeWeek of 2025-11-01: 28 positiveWeek of 2025-11-01: 2 negativeWeek of 2025-12-01: 23 positiveWeek of 2025-12-01: 3 negativeWeek of 2026-01-01: 9 positiveWeek of 2026-01-01: 2 negativeWeek of 2026-02-01: 11 positiveWeek of 2026-02-01: 3 negativeWeek of 2026-03-01: 15 positiveWeek of 2026-03-01: 4 negativeWeek of 2026-04-01: 15 positiveWeek of 2026-04-01: 4 negativeWeek of 2026-05-01: 7 positiveWeek of 2026-05-01: 7 negativeWeek of 2026-06-01: 13 positiveWeek of 2026-07-01: 7 positiveWeek of 2026-08-01: 3 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

4282026-08-06 22:00 — 15 players2026-08-07 06:00 — 24 players2026-08-07 14:00 — 10 players2026-08-07 22:00 — 20 players2026-08-08 06:00 — 27 players2026-08-08 14:00 — 16 players2026-08-08 22:00 — 24 players2026-08-09 06:00 — 26 players2026-08-09 14:00 — 11 players2026-08-09 22:00 — 19 players2026-08-10 06:00 — 32 players2026-08-10 14:00 — 10 players2026-08-10 22:00 — 18 players2026-08-11 06:00 — 42 players2026-08-11 14:00 — 21 players2026-08-12 22:00 — 24 players2026-08-14 05:00 — 20 players2026-08-15 13:00 — 8 players2026-08-16 21:00 — 27 players2026-08-18 04:00 — 24 players2026-08-19 12:00 — 10 players2026-08-20 19:00 — 23 players2026-08-22 03:00 — 27 players2026-08-23 10:00 — 16 players2026-08-24 18:00 — 19 players2026-08-26 02:00 — 14 players2026-08-27 10:00 — 10 players2026-08-28 18:00 — 13 players2026-08-30 02:00 — 14 players
Concurrent players, hourly average, last 30 days (census samples).

Attention

2422026-05-31 — 8 pageviews2026-06-03 — 7 pageviews2026-06-06 — 11 pageviews2026-06-09 — 2 pageviews2026-06-12 — 10 pageviews2026-06-15 — 6 pageviews2026-06-18 — 7 pageviews2026-06-21 — 10 pageviews2026-06-24 — 10 pageviews2026-06-27 — 11 pageviews2026-06-30 — 6 pageviews2026-07-03 — 6 pageviews2026-07-06 — 5 pageviews2026-07-09 — 6 pageviews2026-07-12 — 5 pageviews2026-07-15 — 4 pageviews2026-07-18 — 10 pageviews2026-07-21 — 9 pageviews2026-07-24 — 10 pageviews2026-07-27 — 6 pageviews2026-07-30 — 11 pageviews2026-08-02 — 9 pageviews2026-08-05 — 10 pageviews2026-08-08 — 9 pageviews2026-08-11 — 11 pageviews2026-08-14 — 9 pageviews2026-08-17 — 24 pageviews2026-08-20 — 12 pageviews2026-08-23 — 7 pageviews2026-08-26 — 16 pageviews2026-08-28 — 7 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

60+
achievements tracked
1.1%
earned "Fighting for A Greater Cause"
0.2%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsLinuxMulti-playerPvPOnline PvPCo-opOnline Co-opModsMods (require HL2)Steam AchievementsSteam WorkshopCamera Comfort1 DLC

12 supported languages: English, Russian, French, Italian, German, Spanish - Spain, Danish, Dutch, Portuguese - Portugal, Portuguese - Brazil, Simplified Chinese, Spanish - Latin America

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)2,0743%106

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

FPSModCo-opIndieActionHorrorShooterZombiesSurvivalAdventure

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

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Similarity via IGDB.

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