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
Underground Security Inc DemoEventsDemo Officially Released!
News

Demo Officially Released!

Underground Security Inc Demo · published 6 Mar 2026, 22:49 UTC

All eventsPlayers around this dateRead on Steam

We are excited to announce the demo release of Underground Security Inc!

What's in the Demo?

Players can play a full run of 3 infamy levels (acts) on one of 4 difficulty levels. The demo includes 50 minions, 75+ ancient tomes and 4 possible bosses to test your dungeon against!

Players can earn souls by completing runs. Souls can be allocated for starting tomes in between runs to give the player an advantage for their next attempt!

What's next?

We are still actively working on the demo! We will shift away from adding new content and focusing on adding QOL improvements, balance updates and controller / steam-deck support.


What's not in the Demo?

The full game will feature a narrative element that will stretch 5 different regions, each with their own unique heroes and bosses. The game will of course contain more content in general: more minions, buildings, events and ancient tomes!


We hope you enjoy the demo! Help us improve the game by leaving a rating, providing comments through the feedback form or submitting a bug report if you find one!


Thanks again to all the playtesters that provided valuable feedback and bug reports throughout the last few months!

More from Underground Security Inc Demo

Other announcements

All events
Underground Security IGame update11 Sep 2026Demo Patch v0.4.20Quick hotfix to the demo fixing a bug with the Shadow Mage where the dark synergy was trigger on assign and past the normal 3 ability cap.Underground Security IGame update22 Aug 2026Demo Patch v0.4.24A quick update to the demo to fix a few bugs · Modified the logic for Tomida Femina so that it no longer tries to draw past your hand size · Fixed a bug where Book of Riches Volume 3 does not trigger · Fixed an issue where restarting the day while in a tutorial screen disables tooltips temporarilyUnderground Security IGame update10 Aug 2026Demo Patch v0.4.23Demo patch fixing some bug fixes: · Fixed a bug where minions could be dragged from the crypt and deck could allow the minion to be deployed or assigned into the dungeon · Fixed an issue, where opening the settings menu on controller can lead to a soft-lock while in the tutorial