How many people are playing Unstable Nuclear Reactor Demo right now?

Unstable Nuclear Reactor Demo has 0 players on Steam right now, with a 24-hour peak of 4 and an all-time peak of 4 on 14 Sep 2026.

What is the all-time peak player count of Unstable Nuclear Reactor Demo?

4 concurrent players on 14 Sep 2026.

When was Unstable Nuclear Reactor Demo released on Steam?

Unstable Nuclear Reactor Demo was released on Steam on 22 Jun 2026.

Status

SteamPeaks

Unstable Nuclear Reactor Demo

DemoApp ID 4,692,090by Ali BoukerouiReleased 22 Jun 2026

WindowsEngine —

View on SteamSteam

App ID4,692,090

Release date22 Jun 2026

Engine—

Install size161 MB

TypeDemo

Last update14 Sep 2026

Steam DeckUnknown

DLC0

DeveloperAli Boukeroui

Changenumber38,870,298

PriceFree

Packages0

PublisherMXSGames

SystemsWindows

Followers—

Depots1

Compare this game

Unstable Nuclear Reactor Demo

Ali Boukeroui·MXSGames
Released 22 Jun 2026·App 4692090

Steam user reviews

Not enough reviews yet

0 so far · summary at 10

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

How it works

Playing now

−1 vs. yesterday

0.0%of peak

All-time peak

14 Sep 2026

Update history

A permanent record of every observed change.

Export

All changes Changelists Builds News Store Achievements

Unstable Nuclear Reactor Demo Update History · SteamPeaks

Time (UTC)SourceWhat changedAddedEditedRemovedReference

14 Sep 2026

17:51:59PICSPublic manifest changed—~6—#38,870,298

Recorded change · 14 Sep 2026, 17:51:59 UTC

Status	Key	Previous value	New value
Branches · 3
Edited	Build ID on publicdepots.branches.public.buildid	25176041	25279897
Edited	Build time on publicdepots.branches.public.timebuildupdated	7 Sep 2026, 22:46:38 UTC1788821198	13 Sep 2026, 06:08:03 UTC1789279683
Edited	Updated time on publicdepots.branches.public.timeupdated	7 Sep 2026, 22:51:40 UTC1788821500	14 Sep 2026, 17:51:50 UTC1789408310
Depots · 3
Edited	Download size on publicdepots.4692091.manifests.public.download	54.7 MB57323136	54.7 MB57356752+33 KB
Edited	Manifest on publicdepots.4692091.manifests.public.gid	2461453877922529240	2730507261284104673
Edited	Size on disk on publicdepots.4692091.manifests.public.size	158.0 MB165679399	160.7 MB168538951+2.7 MB

Raw values

17:51:50BuildsPublic branch updated · 1 depot—~1—25279897

Depot 4692091 · public

Previous manifest2461453877922529240

New manifest2730507261284104673

Download sizeManifest ID recorded · file listing pending

Raw values

9 Sep 2026

03:04:52Achievements33 definitions added+33——Schema snapshot

Definitions added · original values preservedView all 33

Status	Key	Previous value	New value
Added	ACH_CHAIN_12	—	Blazar — Trigger a chain reaction of 12 atoms from a single placement
Added	ACH_CHAIN_3	—	Triple Chain — Trigger a chain reaction of 3 atoms from a single placement
Added	ACH_CHAIN_6	—	Super Collider — Trigger a chain reaction of 6 atoms from a single placement

8 Sep 2026

01:26:50News☢️ MAJOR UPDATE 1.1.0 - Play Unstable Nuclear Reactor 🚀———Major update

Major update · published 8 Sep 2026, 01:26:50 UTC

☢️ MAJOR UPDATE 1.1.0 - Play Unstable Nuclear Reactor 🚀

For the past seven months, I’ve been working on this project completely solo. During development, I conducted extensive playtesting with over 10,000 players across various WebGL platforms to refine the core gameplay. WHAT CHANGED? Based on tough feedback regarding harsh RNG and a lack of tutorials, I reworked the core experience by introducing: · Hold Slots: Store up to 5 atoms or tools to use…

Read on Steam

Read in full

7 Sep 2026

23:45:28PICSStore metadata edited—~1—#38,680,321

Recorded change · 7 Sep 2026, 23:45:28 UTC

Status	Key	Previous value	New value
Edited	store_asset_mtimecommon.store_asset_mtime	1,783,634,3841783634384	1,788,824,7011788824701+5,190,317

Raw values

22:51:49PICSPublic manifest changed+78——#38,679,476

Recorded change · 7 Sep 2026, 22:51:49 UTC

Branches · 3
Added	Build ID on publicdepots.branches.public.buildid	—	25176041
Added	Build time on publicdepots.branches.public.timebuildupdated	—	7 Sep 2026, 22:46:38 UTC1788821198
Added	Updated time on publicdepots.branches.public.timeupdated	—	7 Sep 2026, 22:51:40 UTC1788821500
Depots · 4
Added	Operating systemsdepots.4692091.config.oslist	—	windows
Added	Download size on publicdepots.4692091.manifests.public.download	—	54.7 MB57323136
Added	Manifest on publicdepots.4692091.manifests.public.gid	—	2461453877922529240
Added	Size on disk on publicdepots.4692091.manifests.public.size	—	158.0 MB165679399
Store · 42
Added	Association 0 · namecommon.associations.0.name	—	Ali Boukeroui
Added	Association 0 · typecommon.associations.0.type	—	developer
Added	Association 1 · namecommon.associations.1.name	—	MXSGames
Added	Association 1 · typecommon.associations.1.type	—	publisher
Added	category · category_2common.category.category_2	—	1
Added	category · category_22common.category.category_22	—	1
Added	category · category_67common.category.category_67	—	1
Added	category · category_68common.category.category_68	—	1
Added	category · category_74common.category.category_74	—	1
Added	category · category_76common.category.category_76	—	1
Added	category · category_80common.category.category_80	—	1
Added	category · category_82common.category.category_82	—	1
Added	Community stats visiblecommon.community_visible_stats	—	1
Added	controllertagwizardcommon.controllertagwizard	—	1
Added	exfglscommon.exfgls	—	6
Added	Game IDcommon.gameid	—	4692090
Added	genres · 0common.genres.0	—	4
Added	genres · 1common.genres.1	—	23
Added	genres · 2common.genres.2	—	2
Added	library_assets_full · library_logo · logo_position · height_pctcommon.library_assets_full.library_logo.logo_position.height_pct	—	67.09807646639754
Added	library_assets_full · library_logo · logo_position · pinned_positioncommon.library_assets_full.library_logo.logo_position.pinned_position	—	CenterCenter
Added	library_assets_full · library_logo · logo_position · width_pctcommon.library_assets_full.library_logo.logo_position.width_pct	—	19.965075669382998
Added	library_assets · library_capsulecommon.library_assets.library_capsule	—	en
Added	library_assets · library_headercommon.library_assets.library_header	—	en
Added	library_assets · library_herocommon.library_assets.library_hero	—	en
Added	library_assets · library_hero_blurcommon.library_assets.library_hero_blur	—	en
Added	library_assets · library_logocommon.library_assets.library_logo	—	en
Added	library_assets · logo_position · height_pctcommon.library_assets.logo_position.height_pct	—	67.09807646639754
Added	library_assets · logo_position · pinned_positioncommon.library_assets.logo_position.pinned_position	—	CenterCenter
Added	library_assets · logo_position · width_pctcommon.library_assets.logo_position.width_pct	—	19.965075669382998
Added	Namecommon.name	—	Unstable Nuclear Reactor Demo
Added	Architecturecommon.osarch	—
Added	osextendedcommon.osextended	—
Added	Operating systemscommon.oslist	—	Windowswindows
Added	Parent appcommon.parent	—	4644400
Added	primary_genrecommon.primary_genre	—	4
Added	Release statecommon.releasestate	—	released
Added	Steam release datecommon.steam_release_date	—	22 Jun 2026, 16:51:56 UTC1782147116
Added	store_asset_mtimecommon.store_asset_mtime	—	1783634384
Added	Typecommon.type	—	Demo
Added	Developerextended.developer	—	Ali Boukeroui
Added	Publisherextended.publisher	—	MXSGames
Assets · 13
Added	Client iconcommon.clienticon	—	3d01004fa3d10132cd6962d954615f2f7179f6f9
Added	Header imagecommon.header_image.english	—	afcec6ab…/header.jpg
Added	Iconcommon.icon	—	3d01004fa3d10132cd6962d954615f2f7179f6f9
Added	library_capsule · image · englishcommon.library_assets_full.library_capsule.image.english	—	02046db9…/library_capsule.jpg
Added	library_capsule · image2x · englishcommon.library_assets_full.library_capsule.image2x.english	—	02046db9…/library_capsule_2x.jpg
Added	library_header · image · englishcommon.library_assets_full.library_header.image.english	—	b505a2af…/library_header.jpg
Added	library_header · image2x · englishcommon.library_assets_full.library_header.image2x.english	—	b505a2af…/library_header_2x.jpg
Added	library_hero_blur · image · englishcommon.library_assets_full.library_hero_blur.image.english	—	186f685d…/library_hero_blur.jpg
Added	library_hero · image · englishcommon.library_assets_full.library_hero.image.english	—	186f685d…/library_hero.jpg
Added	library_hero · image2x · englishcommon.library_assets_full.library_hero.image2x.english	—	186f685d…/library_hero_2x.jpg
Added	library_logo · image · englishcommon.library_assets_full.library_logo.image.english	—	592e1cc4…/logo.png
Added	library_logo · image2x · englishcommon.library_assets_full.library_logo.image2x.english	—	592e1cc4…/logo_2x.png
Added	small_capsule · englishcommon.small_capsule.english	—	0ececdde…/capsule_231x87.jpg
Launch options · 2
Added	Install directoryconfig.installdir	—	Unstable Nuclear Reactor Demo
Added	Launch option 0 · executableconfig.launch.0.executable	—	Unstable Nuclear Reactor.exe
Localization · 13
Added	Brazilian · interfacecommon.supported_languages.brazilian.supported	—	true
Added	Danish · interfacecommon.supported_languages.danish.supported	—	true
Added	English · interfacecommon.supported_languages.english.supported	—	true
Added	French · interfacecommon.supported_languages.french.supported	—	true
Added	German · interfacecommon.supported_languages.german.supported	—	true
Added	Indonesian · interfacecommon.supported_languages.indonesian.supported	—	true
Added	Italian · interfacecommon.supported_languages.italian.supported	—	true
Added	Japanese · interfacecommon.supported_languages.japanese.supported	—	true
Added	Koreana · interfacecommon.supported_languages.koreana.supported	—	true
Added	Portuguese · interfacecommon.supported_languages.portuguese.supported	—	true
Added	Russian · interfacecommon.supported_languages.russian.supported	—	true
Added	Schinese · interfacecommon.supported_languages.schinese.supported	—	true
Added	Spanish · interfacecommon.supported_languages.spanish.supported	—	true
Other · 1
Added	appid	—	4692090