STEAMDB NEXUS

Steam app 2570580 · updated 12 Sep 2026, 23:05 UTC

Ground Zero Hero

Kill mutants. Absorb their remains. Mutate into something stronger every run. Stack insane power combos and survive overwhelming hordes in this fast, chaotic, highly replayable action roguelite bullet hell.

Ground Zero Hero Steam header artwork
Rowan EdmondsonAcclaim, Inc., Aurakenn Games
5playing now
1024-hour peak
71all-time peak
19average, last 30 days

The last 30 days

−7.3Gain−27%% gain71Peak

272 hourly samples, with the daily peak drawn over them. Weekends are shaded.

01938587722 Aug25 Aug28 Aug31 Aug03 Sep06 Sep09 Sep12 SepSaturday 22 August 202628 peakSunday 23 August 202671 peakMonday 24 August 202654 peakTuesday 25 August 202647 peakWednesday 26 August 202635 peakThursday 27 August 202622 peakFriday 28 August 202615 peakSaturday 29 August 202622 peakSunday 30 August 202621 peakMonday 31 August 202615 peakTuesday 01 September 202616 peakWednesday 02 September 202623 peakThursday 03 September 202631 peakFriday 04 September 202624 peakSaturday 05 September 202628 peakSunday 06 September 202621 peakMonday 07 September 202615 peakTuesday 08 September 202613 peakWednesday 09 September 202614 peakThursday 10 September 202610 peakFriday 11 September 20269 peakSaturday 12 September 202610 peak
Daily peakEvery hourly sample

All time

2 months, August 2026 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

019385877Aug 2026Sep 2026August 202671 monthly peakSeptember 202631 monthly peak
Monthly peak

The last four months

Show:

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

019385877July 2026August 2026September 2026October 2026August 202671 peak — hourly detail belowSeptember 202631 peak — hourly detail below
Monthly peakHas finer data

July 2026

Ground Zero Hero was released on 20 Aug, 2026.

Not out yet.There is nothing to draw for this month.

August 2026

10 days as the curve, each the highest figure that day. Behind it, 140 hourly samples. Each dip is a night. Weekends are shaded.

01938587722 Aug23 Aug24 Aug25 Aug26 Aug27 Aug28 Aug29 Aug30 Aug31 AugSaturday 22 August 202628 peakSunday 23 August 202671 peakMonday 24 August 202654 peakTuesday 25 August 202647 peakWednesday 26 August 202635 peakThursday 27 August 202622 peakFriday 28 August 202615 peakSaturday 29 August 202622 peakSunday 30 August 202621 peakMonday 31 August 202615 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 132 hourly samples. Each dip is a night. Weekends are shaded.

0817253301 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 202616 peakWednesday 02 September 202623 peakThursday 03 September 202631 peakFriday 04 September 202624 peakSaturday 05 September 202628 peakSunday 06 September 202621 peakMonday 07 September 202615 peakTuesday 08 September 202613 peakWednesday 09 September 202614 peakThursday 10 September 202610 peakFriday 11 September 20269 peakSaturday 12 September 202610 peak

October 2026

Ground Zero Hero was released on 20 Aug, 2026.

Not out yet.There is nothing to draw for this month.
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Updated 12 Sep 2026, 23:05 UTC
App ID
2570580
Last updated
28 Aug 2026 build 25002318
Developer
Rowan Edmondson
Publisher
Acclaim, Inc., Aurakenn Games
Release date
20 Aug, 2026
Platforms
WindowsmacOSLinux
Download size
384 MB627 MB384 MB
Install size
2.30 GB3.66 GB2.30 GB
Genres
Action, Adventure
Game modes
Single-player
Controller support
Full
Achievements
67

Features & support

Steam features

Steam AchievementsKeyboard Only OptionMouse Only Option#category_playable_at_your_own_paceSteam CloudFamily Sharing

Controllers & input

Full controller support

Accessibility

Playable without Timed InputStereo Sound

Popular tags

Bullet HeavenAction RoguelikeRoguelite2DSingleplayerRoguelikeActionControllerPost-apocalypticScore AttackCombatSci-fiTop-DownAction RPGBullet HellResource ManagementArcadeCartoonyColorfulPsychedelic
About this gameFull description from Steam
Forget surviving the apocalypse. You’re here to dominate it. Ground Zero Hero drops you into a radioactive wasteland overrun with mutated creatures. Every enemy you destroy becomes fuel for your evolution. Absorb their remains, stack mutations, and build increasingly powerful and unpredictable combinations until you become an unstoppable force. Each run is a new experiment. Each build is a new monster. Fast, chaotic, and endlessly replayable, Ground Zero Hero blends bullet hell combat, roguelite progression, and survival mechanics into one addictive loop where every decision shapes your path to power. ABSORB. MUTATE. EVOLVE. Every enemy you defeat drops the raw material for your next transformation. Stack mutations, combine abilities, and create wildly different builds every run. No two playthroughs are ever the same. SURVIVE OVERWHELMING HORDES Face massive, screen-filling waves of mutated enemies attacking from all directions. Each wave escalates. Each night gets deadlier. Dodge, adapt, and push your build to its limits in pure bullet hell chaos. LOOT, UPGRADE, DOMINATE Collect resources from fallen enemies and crack safes under pressure to grow stronger. Unlock and upgrade across multiple progression paths, each offering powerful bonuses that shape your playstyle. Build smart. Survive longer. Become unstoppable. FEATURES Action roguelite gameplay with deep replayability Bullet hell combat with massive enemy hordes Mutation system with countless build combinations 80+ upgrades across multiple progression paths 60+ unique enemies and evolving threats Multiple biomes with dynamic environmental challenges Endless Mode for high-skill players 60 challenges to complete and master Fast-paced runs designed for repeat play Unique dark humor and chaotic tone throughout
Content & age ratings3 regional ratings

Regional ratings

DEJUS10Drogas · Violência fantasiosa
ESRBtBlood · Use of Drugs · Violence
IGRS18Rokok dan/atau rokok elektronik, minuman beralkohol, narkotika, psikotropika, dan/atau zat adiktif lainnya · Kekerasan
System requirementsMinimum and recommended hardware

Minimum

Minimum: OS: Windows 10 / 11 Processor: Intel Core i3-9100 / AMD Ryzen 3 3100 or any 4-Core CPU Memory: 8 GB RAM Graphics: NVIDIA GTX 750 Ti 2GB / AMD Radeon R7 260X 2GB Storage: 2 GB available space Sound Card: Onboard audio Additional Notes: 30 FPS @ 1080p

Recommended

Recommended: OS: Windows 10 / 11 Processor: AMD Ryzen 3 3100 or any 4-Core CPU Intel Core i5-9400 / AMD Ryzen 5 2600 or any 6-Core CPU Memory: 16 GB RAM Graphics: NVIDIA GTX 1060 3GB / AMD Radeon RX 570 4GB Storage: 2 GB available space Sound Card: Onboard audio Additional Notes: 60 FPS @ 1080p

macOS

Minimum: OS: macOS 10.13 High Sierra or later Processor: Intel Core M or Apple M1 (Universal build recommended) Memory: 2 GB RAM Graphics: Integrated Graphics Storage: 1 GB available space Sound Card: Any compatible sound card Additional Notes: n/a

Linux

Minimum: OS: SteamOS 3.8.16 Recommended: OS: SteamOS 3.8.16 Processor: AMD APU, Zen 2 4-core/8-thread, 2.4–3.5 GHz Graphics: 8 RDNA 2 CUs, 1.6 GHz (1.6 TFlops FP32) Storage: 2 GB available space
Supported languages11 languages
LanguageFull audio
English●
French●
German●
Japanese●
Korean●
Russian●
Simplified Chinese●
Traditional Chinese●
Italian●
Spanish - Spain●
Portuguese - Brazil●

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

67 achievements in total.

Show selected achievements (may contain spoilers)
CRACKERAchievement
GIMME THE GOO!Achievement
DAY TRIPPIN'Achievement
BUNKER BOYAchievement
CLOSE ENCOUNTERHidden achievement
SKY FIREAchievement
THE CHICKEN MAN COMETHHidden achievement
RIDIN' DIRTYAchievement
BARREL POPPIN'Achievement
VIVA PINATA!Achievement

View all Steam achievements

DemosPlayable demos on Steam

3 developer announcements, May 2026 to Aug 2026 · times in UTC

August

  1. Ground Zero Hero Update: Patching Up the Wasteland

    Hey all you wonderfully freakish Radlings! GZH has officially been out for a week now, and it's been awesome seeing your excitement, encouragement, and support. Thank you for playing, sharing your experiences, giving us your thoughts, and…

    Patch notes
  2. Freaky Horde Survivor Ground Zero Hero Lands on Steam today

    LOS ANGELES — August 20, 2026 — Developer Rowand Edmondson and publisher Acclaim, inc. today released Ground Zero Hero, a chaotic roguelike horde survival game with wild mutations and an eye-catching art style inspired by The Simpsons and…

    Ms. Sorrow

May

  1. Unleash Your Inner Freak Today In Ground Zero Hero’s New Steam Demo

    Available now, the demo drops players into the game’s first wasteland, Doomsday Desert, offering a taste of the chaos to come. Players can experiment with 14 of the game’s 19 total mutations, beginning with five and unlocking nine more as…

    Ms. Sorrow

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