STEAMDB NEXUS

Steam app 3596670 · updated 12 Sep 2026, 23:53 UTC

MOCHI-O

A doomsday land defense adventure in which you raise MOCHI-O, a weapon of annihilation that looks a lot like a hamster, to protect your country. Pet and raise MOCHI-O to defeat the oncoming enemies and fight through the tender post-apocalypse.

MOCHI-O Steam header artwork
ZximaKodansha
1playing now
324-hour peak
207all-time peak
0average, last 30 days

The last 30 days

−1Gain−51.87%% gain5Peak

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

0134516 Aug21 Aug25 Aug30 Aug02 Sep05 Sep09 SepSunday 16 August 20265 peakMonday 17 August 20261 peakFriday 21 August 20260 peakMonday 24 August 20261 peakTuesday 25 August 20261 peakSaturday 29 August 20261 peakSunday 30 August 20263 peakTuesday 01 September 20261 peakWednesday 02 September 20263 peakThursday 03 September 20262 peakSaturday 05 September 20260 peakTuesday 08 September 20261 peakWednesday 09 September 20260 peakSaturday 12 September 20263 peak
Daily peakEvery hourly sample

All time

9 months, January 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.

056112168224Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026January 2026207 monthly peakFebruary 202657 monthly peakMarch 202617 monthly peakApril 20268 monthly peakMay 20265 monthly peakJune 20268 monthly peakJuly 202613 monthly peakAugust 20265 monthly peakSeptember 20263 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.

0471114July 2026August 2026September 2026October 2026July 202613 peak — daily detail belowAugust 20265 peak — daily detail belowSeptember 20263 peak — daily detail below
Monthly peakHas finer data

July 2026

26 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

047111401 Jul07 Jul12 Jul16 Jul20 Jul25 Jul29 JulWednesday 01 July 20268 peakThursday 02 July 20265 peakSaturday 04 July 202613 peakSunday 05 July 202613 peakTuesday 07 July 20264 peakThursday 09 July 20266 peakFriday 10 July 20266 peakSaturday 11 July 20267 peakSunday 12 July 20264 peakMonday 13 July 20263 peakTuesday 14 July 20262 peakWednesday 15 July 20263 peakThursday 16 July 20263 peakFriday 17 July 20262 peakSaturday 18 July 20264 peakSunday 19 July 20264 peakMonday 20 July 20263 peakTuesday 21 July 20261 peakWednesday 22 July 20261 peakFriday 24 July 20263 peakSaturday 25 July 20263 peakSunday 26 July 20261 peakMonday 27 July 20263 peakTuesday 28 July 20261 peakWednesday 29 July 20262 peakThursday 30 July 20263 peak

August 2026

11 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

0134501 Aug08 Aug09 Aug16 Aug17 Aug21 Aug24 Aug25 Aug26 Aug29 Aug30 AugSaturday 01 August 20260 peakSaturday 08 August 20261 peakSunday 09 August 20261 peakSunday 16 August 20265 peakMonday 17 August 20261 peakFriday 21 August 20260 peakMonday 24 August 20261 peakTuesday 25 August 20261 peakWednesday 26 August 20260 peakSaturday 29 August 20261 peakSunday 30 August 20263 peak

September 2026

7 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

0123401 Sep02 Sep03 Sep05 Sep08 Sep09 Sep12 SepTuesday 01 September 20261 peakWednesday 02 September 20263 peakThursday 03 September 20262 peakSaturday 05 September 20260 peakTuesday 08 September 20261 peakWednesday 09 September 20260 peakSaturday 12 September 20263 peak

October 2026

MOCHI-O was released on 19 Jan, 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, 23:53 UTC
App ID
3596670
Last updated
27 Aug 2026 build 24965967
Developer
Zxima
Publisher
Kodansha
Release date
19 Jan, 2026
Platforms
Windows
Genres
Casual, Indie, Strategy
Game modes
Single-player
Controller support
Unknown
Achievements
4

Features & support

Steam features

Steam AchievementsFamily Sharing

Controllers & input

Accessibility

Popular tags

StrategyShooterCasualTower DefenseSingleplayerReal Time TacticsRogueliteTactical RPG2DCutePixel GraphicsFantasyPost-apocalypticWarFunnyAtmosphericCharacter CustomizationDialogue HeavyIndie
About this gameFull description from Steam
A homeland defense adventure to raise and fight kawaii annihilation weapons! Handheld annihilation weapons to defeat invading enemies Hold MOCHI-O in your right hand, aim at the enemy, and attack. Enemies you defeat will drop seeds. As you accumulate experience gained from picking up the seeds, you will gain skills from random choices. Strengthen your MOCHI-O in battle to destroy the approaching enemies and defend the defense line. Throwing Seeds to Breed MOCHI-O Spend the money you earn in battle to strengthen MOCHI-O. You can also unlock weapons, which will give you an advantage in battle. Giving seeds to MOCHI-O will increase its trust level and strengthen its status. What is MOCHI-O? A cute hamster......but a handy annihilation weapon for homeland defense. The player's mission is to raise MOCHI-O as a keeper and protect his country from foreign enemies. The heartwarming dialogue between the characters is also a highlight of the game. Creator Profile Zxima Zxima started game development as an independent developer in 2017, He has released 10 games, including “Parasite Days” and “Post-apocalypse Bakery”. His games are set in a tender post-apocalypse world, and feature game systems and a mysterious worldview created by his unique sensibility. “Catastrophe Restaurant” won the Top 3 award at the Google Play Indie Games Festival 2022. [Creator's comment] Wouldn't it be great if you could go on a rampage with a small, cute, and extremely strong character? That's what I had in mind when I created this game from start to finish. I would be happy if you could go on a rampage with a small, cute, and extremely strong character.
Content & age ratings2 regional ratings

Regional ratings

DEJUSl
IGRS3
System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS *: Windows XP/Vista/7/8/10/11(64bit) Processor: Intel Core i3 Memory: 4 GB RAM Graphics: Intel HD Graphics 4000 Storage: 200 MB available space Sound Card: DirectX compatible

Recommended

Recommended: Requires a 64-bit processor and operating system OS *: Windows XP/Vista/7/8/10/11(64bit) Processor: Intel Core i7 Memory: 8 GB RAM Graphics: Intel HD Graphics 4000 Storage: 200 MB available space Sound Card: DirectX compatible

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:
Supported languages4 languages
LanguageFull audio
Japanese
English
Simplified Chinese
Traditional Chinese

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

Screenshots & trailersScreenshots and trailers
MOCHI-O screenshot 1MOCHI-O screenshot 2MOCHI-O screenshot 3MOCHI-O screenshot 4MOCHI-O screenshot 5MOCHI-O screenshot 6MOCHI-O screenshot 7

Trailers

AchievementsTotal count and selected achievements

4 achievements in total.

Show selected achievements (may contain spoilers)
New zookeeperAchievement
Normal mode clearAchievement
Hard mode clearAchievement
Endless mode level10Achievement

View all Steam achievements

DemosPlayable demos on Steam

9 developer announcements, Oct 2025 to Aug 2026 · times in UTC

August

  1. Update ver.1.53

    Thank you for playing “MOCHI-O”.The following update was made in ver. 1.53----------ver.1.53- Addressing the issue of hard-to-read text in the UI----------Thank you for your continued support of “MOCHI-O”.

    Patch notes

March

  1. Update ver.1.41

    Thank you for playing “MOCHI-O”. The following update was made in ver. 1.41 ---------- ver.1.41 - Performance Optimization - Fixed a bug where the missile lock-on reticle would appear too small. - Fixed an issue preventing simultaneous use…

    Patch notes

February

  1. Update ver.1.35

    Thank you for playing “MOCHI-O”. The following update was made in ver. 1.35 ---------- ver.1.35 - Fixed an issue where the number of armored vehicles destroyed was not being counted correctly ---------- Thank you for your continued support…

    Patch notes

January

  1. Update ver.1.31

    Thank you for playing “MOCHI-O”. The following update was made in ver. 1.31 ---------- ver.1.31 - When multiple HHH weapons are unlocked simultaneously and one is selected, the unselected HHH weapon will now be prioritized for display upon…

    Patch notes
  2. Update ver.1.30

    Thank you for playing “MOCHI-O”. The following update was made in ver. 1.30 ---------- ver.1.30 - Fixed display issues in certain areas - Enemies falling from the sky during Endless Mode no longer take knockback damage ---------- Thank you…

    Patch notes
  3. ‘MOCHI-O’ Now Available!

    ――That hamster can be both a source of comfort and a weapon. How you love it is up to you.Kodansha Game Lab has released ‘MOCHI-O’ , an apocalyptic homeland defense adventure where you raise and battle hamster-shaped handheld annihilation…

    gamelab_publishing
  4. January 19 ‘MOCHI-O’ Release Date Announced!

    This is an apocalyptic homeland defense adventure where you raise “MOCHI-O,” a weapon of annihilation resembling a hamster, to protect your nation. As a “caretaker,” you nurture MOCHI-O and use it to annihilate foreign enemies attacking…

    gamelab_publishing

November

  1. Chinese (Simplified & Traditional) Language Support Added

    We’re excited to announce that Chinese (Simplified and Traditional) has been added to MOCHI-O! The currently available demo version already supports these languages, so if you haven’t played yet, please give it a try. Thank you for your…

    Patch notes

October

  1. Demo Release Now Available! Featured at Steam Next Fest!

    Today, we've released the demo version of ‘MOCHI-O’!We'll be exhibiting at the Steam Next Fest, running from October 13th to October 20th (PT).‘MOCHI-O’ is an apocalyptic homeland defense adventure where you raise and battle the adorable…

    ky-hirata

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