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Atom Zombie Smasher

Atom Zombie Smasher

The zombie apocalypse is upon us and it's up to you to evacuate everyone before they fall prey to the undead. Conduct massive rescue operations with a helping hand from snipers, artillery crews, orbital bombardments, and more.

Released Mar 14, 2011 Developer Blendo Games Platforms Windows · Mac · Linux Real Time TacticsTower DefenseZombiesProcedural GenerationReplay Value
View on Steam ↗ $9.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

89.6%positive2,032 reviews
Recommended · 0 found this helpful

“I keep coming back to this one. Very difficult but very rewarding when you get into the zone.”

— a player, Steam review · 18 hrs played
Recommended · 1 found this helpful

“Absolute masterpiece. I've thought about this game every year for the past 14 years.”

— a player, Steam review · 12 hrs played
Not recommended · 2 found this helpful

“"Cool" game, vibe-wise, but I'm not a fan of its unforgiving gameplay. All your abilities are rather quirky. Even civilian behavior is unpredictable at times; you'd think they'd run away from zeds -- both "run" and "away" being operative terms here -- but ... not always.…”

— a player, Steam review · 21 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-23 23:38 UTC · history via SteamCharts.

2playing at last check
424-hour peak
296all-time peak
0 25 50 2013 2015 2017 2019 2021 2023 2025 38 avg · Jul 2012

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

40achievements
13.1%median completion
1.3%rarest: Llama-rama
63.0% of players 59.9% of players 58.6% of players 48.1% of players 44.1% of players 42.4% of players 42.1% of players 41.9% of players 41.6% of players 38.5% of players 38.4% of players 33.1% of players 27.7% of players 27.2% of players 22.1% of players 22.0% of players 17.8% of players 17.4% of players 15.8% of players 15.5% of players 13.1% of players 12.0% of players 11.0% of players 9.1% of players 9.1% of players 7.6% of players 6.9% of players 5.7% of players 5.5% of players 4.2% of players 3.5% of players 3.5% of players 2.5% of players 2.0% of players 1.8% of players 1.7% of players 1.4% of players 1.4% of players 1.3% of players 1.3% of players 63.0% 0% most earned rarest
Almost everyone has
63.0%Choplifter — Rescue 100 people in a mission.
59.9%Spring Cleaning — Destroy all Zed in a mission.
58.6%Night Owl — Survive the night.
Rarest badges of honor
1.3%Llama-rama — Launch 500 Llama Bombs.
1.3%The Gold Standard — Accrue 500 gold medals.
1.4%Hypothesis Now — Rescue 10,000 scientists.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$9.99current · sampled 2026-07-26 08:39 UTC
$9.99lowest since tracking began2026-07-25
US9.99 USD
EU9.99 EUR
UK6.99 GBP
Australia14.50 AUD
Canada10.99 CAD
Japan980 JPY
Brazil19.99 BRL
China36.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$3.9 China Japan Canada UK US Australia EU≈$11

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jan 26, 2026
Atom Zombie Smasher 15th Anniversary: New Update + Merch Store

It is the 15TH ANNIVERSARY of Atom Zombie Smasher! To celebrate this anniversary, we launched a merchandise store for our Blendo Games titles (Atom Zombie Smasher, Gravity Bone, Flotilla, Thirty Fligh

Aug 20, 2023
Atom Zombie August Update

Hello all, here's the update for August 2023: Hotkeys We've added new hotkeys to streamline the zombie smashing experience. Left/right bracket: will select next/previous unit. Home/end: will fully zoo

Jul 18, 2016
Quadrilateral Cowboy release date

I'm very excited to announce Quadrilateral Cowboy will be released on July 25, 2016 at 10AM PST. Quadrilateral Cowboy is a first-person cyberpunk heist adventure from Blendo Games, developer of titles

Jul 18, 2016
Quadrilateral Cowboy release date

I'm very excited to announce Quadrilateral Cowboy will be released on July 25, 2016 at 10AM PST. Quadrilateral Cowboy is a first-person cyberpunk heist adventure from Blendo Games, developer of titles

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresIndie, Strategy
Player tagsReal Time Tactics · Tower Defense · Zombies · Procedural Generation · Replay Value · Sandbox · RTS · Strategy · Top-Down · Action · Tactical · Moddable (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Co-op · Shared/Split Screen Co-op · Shared/Split Screen · Steam Achievements · Partial Controller Support · Stats
LanguagesEnglish
Achievements40
Estimated owners200,000 – 500,000 (SteamSpy)
Official sitehttp://www.blendogames.com/atomzombiesmasher/
Minimum system requirements (PC)

OS *: Windows XP/Vista/7 Processor: 1GHz Memory: 512MB Hard Disk Space: 60MB Video Card: 60MB OpenGL-compatible Optional: Gamepad or Joystick required for multiplayer