Status
SteamPeaks
ChartsSalesUpcomingPatchesEventsCalculator
New on SteamEvery app, DLC and depot the minute Steam creates itAppsEvery app on Steam, newest change firstPackagesSubs and bundles, and what each containsDepotsDepots, manifests and install sizesTagsSteam's user tags and the games under themDevelopers & publishersCompanies and their cataloguesTechnologiesEngines, SDKs and anti-cheat found in the filesChange historyEvery PICS changelist as it lands
SignalsNineteen readings of the whole catalogueCompareAny games side by sideRecordsAll-time peaks and the days they were setReportsWeekly and monthly write-upsAlerts & newsroomWatch a game, get told when it movesSteam statusIs Steam up, right nowWeb API explorerTry the endpoints in the browser
EventsSteam's own events and the sales calendarCalculatorWhat a Steam account is worth, and its pile of shame
/
Sign in
/
SteamPeaks
The ultimate resource for Steam data.
ExploreChartsSalesSales and festsUpcomingPatchesEventsRecordsTrendingSignals
DatabaseAppsPackagesDepotsTagsDevelopersTechnologiesChange history
ToolsCalculatorCompareSearchAlertsSteam statusAPI
SiteMethodologyFAQDiscordSupportSign in via Steam
Not affiliated with Valve or Steam. Game names and artwork belong to their owners. All times UTC.
PrivacyCookiesFair useStatus
Cyber RatsEventsBig Update: Hardcore Mode
Major update

Big Update: Hardcore Mode

Cyber Rats · published 12 Dec 2025, 22:12 UTC · build 21165301

All eventsPlayers around this dateRead on Steam


Welcome back, RAT!

Prepare yourself for Survival in the Elite Experiment. Only the Best of the Best rats are being Approved for Elite Testing. So, stay on your toes RAT! There's NO help to get here, as you are Truely... Alone...


UPDATE 2 - Hardcore Mode


Patch Notes 1.2

  • This update adds the long awaited Hardcore mode, only for Elite Rats.

You will get ONE rat, and ONE rat only. It will be a black rat, with red eyes.

No Upgrade Atoms, No Life DNAs. If you lose your rat, it's game over, and you will have to start again from scratch with a new elite rat.

In Hardcore Mode, you can still find fur colors and unlock new rats, so you don't have to play on normal mode at all if you don't want to.

You can only have ONE game active at one time, so clicking "New Run" will reset your current run-progress, no matter if it's hardcore or normal mode.

The Hardcore Mode is iteration 1, and will be improved down the line.

  • Added two new rat types to unlock.

  • Massively improved the visual effects on the blisters, for those rats who has blisters on them.

  • The "boring blisters rat" has now been updated with an improved model.

  • The game has been approved for Steam Deck

  • Many small tweaks, improvements, and bug fixes


Have a nice day!

-Ronnie Ree

Outpost Games

More from Cyber Rats

Other announcements

All events
In-game event27 Jun 2026Cyber Rats Update 1.3 is here!Update 1.3 is here for Cyber Rats.. This video goes over the biggest changes and improvements. Cyber Rats Future At the end of the video, there's a small teaser of what the future will bring for Cyber Rats.. Exciting times guys! 🙂 Have a nice day! 🙂Cyber RatsGame update26 Jun 2026Update 1.3 OverviewThis is a small patch, it fixes some bugs, it adds a much needed Rat Select feature, and it prepares for something big to come in the future 🙂 RANDOMIZE EACH NEW RAT INDIVIDUALLY: Added the option to randomise new rats, who has not entered the maze yet. This means, that when you buy a new rat, you can click "Randomise Rat" till you get the rat you want, and you can do this as many times as you…Major update4 Dec 2025Big Update: Haunted PlaygroundsWelcome back, RAT! Prepare yourself for survival in the two new big biomes. The fun and colorful Playgrounds Biome, and the horrifying Haunted House Biome... Joy meets Horror. UPDATE 1 - HAUNTED PLAYGROUNDS Patch Notes This update reworks old biomes, and add new biomes. · Added new Playground Biome (spawns randomly like all other biomes). · Added new Haunted House Biome (spawns randomly like al…