The Game Census
Ultimate Zombie Defense cover art

Ultimate Zombie Defense

Terror Dog Studio · 2020-12-08

SteamPlayStation Store

ActionAdventureCasualStrategy

Modes: Single player, Multiplayer, Co-operative

Releases: Dec 04, 2025 (PlayStation 5), Feb 21, 2020 (PC (Microsoft Windows)), Oct 23, 2025 (Xbox One), Oct 23, 2025 (Xbox Series X|S)

Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?

51
playing now
85%
positive of 4.8k reviews
Very Positive
steam rating
200,000–500,000
owners (SteamSpy est.)
70/100
IGDB user rating (4 ratings)
gold
deck/linux tier (ProtonDB)
$4.99
steam price (US)

51 players in-game as of 2026-08-30 03:00 UTC (census sample)

Health check

Quietly active
  • · 51 players in-game at the last census sample.
  • · 31 reviews in the last 8 weeks (~4/week).
  • · Review velocity down 38% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (245 reviews).
  • · Top 16% of 10,903 Action games in the census by review count.

Health tier since 2026-08-28

Estimated sales: 95k–215k copies

Review-multiple estimate from 4,774 total reviews — how this is computed.

Current store prices

lowest across shops (ITAD)$3.73-25%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $0.74 at Fanatical (2025-04-14) · bundled 2×via IsThereAnyDeal

12-month high $4.99 · on sale 44 of 62 observed days (census price snapshots)

Review momentum

PositiveNegative
22522520202026Week of 2020-02-01: 5 positiveWeek of 2020-02-01: 1 negativeWeek of 2020-03-01: 17 positiveWeek of 2020-03-01: 1 negativeWeek of 2020-04-01: 8 positiveWeek of 2020-05-01: 4 positiveWeek of 2020-06-01: 12 positiveWeek of 2020-07-01: 52 positiveWeek of 2020-07-01: 1 negativeWeek of 2020-08-01: 17 positiveWeek of 2020-09-01: 9 positiveWeek of 2020-09-01: 1 negativeWeek of 2020-10-01: 7 positiveWeek of 2020-10-01: 3 negativeWeek of 2020-11-01: 14 positiveWeek of 2020-12-01: 87 positiveWeek of 2020-12-01: 9 negativeWeek of 2021-01-01: 225 positiveWeek of 2021-01-01: 20 negativeWeek of 2021-02-01: 145 positiveWeek of 2021-02-01: 37 negativeWeek of 2021-03-01: 49 positiveWeek of 2021-03-01: 8 negativeWeek of 2021-04-01: 22 positiveWeek of 2021-04-01: 2 negativeWeek of 2021-05-01: 28 positiveWeek of 2021-05-01: 7 negativeWeek of 2021-06-01: 15 positiveWeek of 2021-06-01: 3 negativeWeek of 2021-07-01: 26 positiveWeek of 2021-07-01: 3 negativeWeek of 2021-08-01: 23 positiveWeek of 2021-08-01: 4 negativeWeek of 2021-09-01: 14 positiveWeek of 2021-09-01: 3 negativeWeek of 2021-10-01: 11 positiveWeek of 2021-10-01: 2 negativeWeek of 2021-11-01: 47 positiveWeek of 2021-11-01: 5 negativeWeek of 2021-12-01: 14 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 17 positiveWeek of 2022-01-01: 4 negativeWeek of 2022-02-01: 10 positiveWeek of 2022-02-01: 4 negativeWeek of 2022-03-01: 8 positiveWeek of 2022-03-01: 1 negativeWeek of 2022-04-01: 4 positiveWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 7 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 8 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 12 positiveWeek of 2022-07-01: 3 negativeWeek of 2022-08-01: 10 positiveWeek of 2022-08-01: 3 negativeWeek of 2022-09-01: 11 positiveWeek of 2022-09-01: 2 negativeWeek of 2022-10-01: 9 positiveWeek of 2022-10-01: 2 negativeWeek of 2022-11-01: 14 positiveWeek of 2022-11-01: 6 negativeWeek of 2022-12-01: 9 positiveWeek of 2022-12-01: 2 negativeWeek of 2023-01-01: 19 positiveWeek of 2023-01-01: 2 negativeWeek of 2023-02-01: 11 positiveWeek of 2023-03-01: 3 positiveWeek of 2023-03-01: 1 negativeWeek of 2023-04-01: 9 positiveWeek of 2023-05-01: 10 positiveWeek of 2023-06-01: 6 positiveWeek of 2023-06-01: 3 negativeWeek of 2023-07-01: 17 positiveWeek of 2023-07-01: 5 negativeWeek of 2023-08-01: 9 positiveWeek of 2023-09-01: 5 positiveWeek of 2023-09-01: 3 negativeWeek of 2023-10-01: 13 positiveWeek of 2023-10-01: 1 negativeWeek of 2023-11-01: 11 positiveWeek of 2023-11-01: 3 negativeWeek of 2023-12-01: 16 positiveWeek of 2023-12-01: 2 negativeWeek of 2024-01-01: 8 positiveWeek of 2024-01-01: 1 negativeWeek of 2024-02-01: 40 positiveWeek of 2024-02-01: 7 negativeWeek of 2024-03-01: 15 positiveWeek of 2024-03-01: 1 negativeWeek of 2024-04-01: 7 positiveWeek of 2024-04-01: 1 negativeWeek of 2024-05-01: 7 positiveWeek of 2024-05-01: 2 negativeWeek of 2024-06-01: 9 positiveWeek of 2024-07-01: 5 positiveWeek of 2024-07-01: 1 negativeWeek of 2024-08-01: 4 positiveWeek of 2024-08-01: 2 negativeWeek of 2024-10-01: 2 positiveWeek of 2024-11-01: 10 positiveWeek of 2024-11-01: 2 negativeWeek of 2024-12-01: 5 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 4 positiveWeek of 2025-02-01: 6 positiveWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 2 positiveWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 2 positiveWeek of 2025-05-01: 2 negativeWeek of 2025-06-01: 4 positiveWeek of 2025-06-01: 1 negativeWeek of 2025-07-01: 14 positiveWeek of 2025-07-01: 5 negativeWeek of 2025-08-01: 5 positiveWeek of 2025-08-01: 2 negativeWeek of 2025-09-01: 2 positiveWeek of 2025-09-01: 1 negativeWeek of 2025-10-01: 4 positiveWeek of 2025-11-01: 5 positiveWeek of 2025-12-01: 7 positiveWeek of 2026-01-01: 2 positiveWeek of 2026-02-01: 2 positiveWeek of 2026-03-01: 6 positiveWeek of 2026-04-01: 2 positiveWeek of 2026-04-01: 1 negativeWeek of 2026-05-01: 2 positiveWeek of 2026-05-01: 1 negativeWeek of 2026-06-01: 2 positiveWeek of 2026-06-01: 1 negativeWeek of 2026-07-01: 5 positiveWeek of 2026-08-01: 1 positiveWeek of 2026-08-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

7592026-08-07 00:00 — 38 players2026-08-07 08:00 — 43 players2026-08-07 16:00 — 43 players2026-08-08 00:00 — 45 players2026-08-08 08:00 — 47 players2026-08-08 16:00 — 39 players2026-08-09 00:00 — 28 players2026-08-09 08:00 — 33 players2026-08-09 16:00 — 55 players2026-08-10 00:00 — 45 players2026-08-10 08:00 — 47 players2026-08-10 16:00 — 51 players2026-08-11 00:00 — 46 players2026-08-11 08:00 — 28 players2026-08-11 16:00 — 65 players2026-08-13 00:00 — 10 players2026-08-14 07:00 — 13 players2026-08-15 15:00 — 28 players2026-08-16 23:00 — 15 players2026-08-18 07:00 — 17 players2026-08-19 14:00 — 28 players2026-08-20 22:00 — 34 players2026-08-22 05:00 — 14 players2026-08-23 13:00 — 31 players2026-08-24 20:00 — 49 players2026-08-26 04:00 — 23 players2026-08-27 13:00 — 41 players2026-08-28 19:00 — 63 players2026-08-30 03:00 — 51 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$5.99$0.902020-02-212026-08-172020-02-21 — best price $3.992020-11-02 — best price $4.992020-11-23 — best price $2.852020-12-17 — best price $3.662021-02-05 — best price $4.392021-03-01 — best price $3.342021-03-29 — best price $4.992021-04-18 — best price $3.582021-05-30 — best price $4.992021-07-14 — best price $4.142021-09-08 — best price $4.142021-11-21 — best price $4.992022-01-05 — best price $4.992022-03-25 — best price $4.012022-07-08 — best price $3.892022-08-17 — best price $3.892022-11-22 — best price $2.502023-01-25 — best price $2.242023-04-03 — best price $2.992023-07-02 — best price $3.892023-09-04 — best price $4.992023-12-04 — best price $3.242024-02-13 — best price $3.662024-04-01 — best price $3.662024-06-13 — best price $3.242024-08-14 — best price $2.242024-12-04 — best price $5.992025-01-31 — best price $3.892025-04-22 — best price $4.992025-08-11 — best price $4.992025-12-18 — best price $2.492026-02-24 — best price $3.892026-05-12 — best price $2.502026-08-06 — best price $1.692026-08-17 — best price $3.73
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

12
achievements tracked
91.3%
earned "Play your first game"
48.5%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSSingle-playerMulti-playerCo-opOnline Co-opSteam AchievementsSteam CloudSteam LeaderboardsFamily Sharing1 DLC

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

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)5,65533%12
Xbox Series, Xbox One (Xbox)5443%10
PS5 (PlayStation)3043%10

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

Player tags

GoreCo-opActionCasualShooterViolentZombiesStrategySurvivalTop-Down

Census log

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

Players also track

Don't Knock TwiceImmortal: UnchainedDying Light 2 Stay Human: Reloaded EditionApsulov: End of GodsPacifyDays Gone

Similarity via IGDB.

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