Steam app 2551020 · updated 29 Oct 2026, 19:12 UTC
One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments.
720 hourly samples, with the daily peak drawn over them. Weekends are shaded.
35 months, December 2023 to October 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.
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.
The source keeps every hour for about a month, one figure a day for about two, and a single number for anything older.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
29 days as the curve, each the highest figure that day. Behind it, 691 hourly samples. Each dip is a night. Weekends are shaded.
| Language | Full audio |
|---|---|
| English | ● |
A blank audio cell means full audio was not marked in the returned language list.
43 achievements in total.
24 developer announcements, Dec 2023 to Oct 2026 · times in UTC
Haunted MansionGet ready for a spooky new heist! The Haunted Mansion is a brand new free map, available for a limited time during the Halloween event.Explore the eerie mansion, solve unique puzzles, and face off against enemies unlike…
DuhndalChanges to the Data Center mapBug Fixes:Fixed Simon Game (Colored Keypad) not working for clientsCamera lights will now turn off when destroyedFixed Sector C Keycard not working on the other door leading to Sector CFixed utility room…
Patch notesData Center HeistThis AI data center just popped up in the middle of a nature reserve, and it is filled to the brim with valuables. Scattered around the facility are sticks of ram, but the real value is hidden away in the basement, the AI…
DuhndalBug fixes and tweaksFixed skins not working on SPR-12Fixed price on Red dot scope for N1AFixed UI bug when going from the appearance tab to the skill tabMinor bug fixesPostal office map changesTweaked a couple of environment line-of-sight…
Patch notesWeapon skinsGet ready to bling out your guns! With new skins and charms for your weapons, find your favourite combinations of charms and skins. You are now able to customize all of your guns to your liking!Launch the game before August 31.…
DuhndalAll maps are 25% off for the duration of the steam summer sale
DuhndalAll maps are 25% off for the duration of the steam spring sale
DuhndalWe have replaced the automatic "Find games" feature with a traditional server browser. Giving you full control and a more reliable way to find public sessions.Just press the "Find game" button, and you will be taken to a server browser…
DuhndalHarbour HeistGet your best equipment ready, because there is a new heist in One-armed robber. The Harbour Heist!A new shipment of missile guidance chips and military equipment from Rodman has just arrived in the shipping yard. Find and…
DuhndalAll maps are 25% off for the duration of the steam spring sale
DuhndalList of changes +Added 7 new guns *NPCs now get a force applied by exploding C4 *Improved collision on weapons *Fixed an issue where reloading would drop the wrong magazine model. *Fixed an issue where the music would stop when too many…
DuhndalMansion map fixes *The car can no longer be towed while in the basement *The car can no longer be towed through the garage door *Guards will now be alerted if they spot the car being towed Other fixes *Fixed game timer inaccuracy
Patch notesStep into the action with the latest map for one-armed robber: the Mansion Heist. The heist takes place during the millionaire owner’s extravagant birthday party, where he’s celebrating his latest indulgence—a cutting-edge supercar, gifted…
DuhndalAll maps are 25% off for the duration of the steam summer sale
DuhndalAPSBlack Diamond Casino - try to win it big on the slots, or try to win bigger by robbing the place! This casino is filled to the brim with money, in the form of chips, cash and bonds! This also means that the casino is strictly secured with…
DuhndalAPSIt’s time to become the best one-armed version of yourself, and become a skillful robber! Skills are now a part of one-armed robber, giving you the ability to unlock skills to suit your playstyle, and gain an advantage in heists. Skills…
DuhndalAn aspect of the game that has been lacking has been the sounds. A lot of items have had missing sound effects, and ambient sounds and music were non-existent. But not anymore! A lot of you have also been asking for this update for a long…
DuhndalYou will now be able to unlock achievements by completing various challenges and tasks in-game. There are more than 30 achievements to unlock, ranging from Picking locks to killing police! Although many of you might technically already have…
DuhndalWe’ve slightly changed the layout of the map to make it a little easier and to give you some more ways to complete the heist. A warehouse has been added to the back of the building, giving you another place to enter through. The layout of…
Patch notesFrom now and until Feb. 6. all maps are 25% off!
DuhndalAppearance shop We have decided to change the way the appearance shop works in the game. From now on, there will only be 2 weekly items, the “featured items” section will become “all items”, and almost all previous items will be available…
Patch notesThis liquor shop is like most others, however they also have one of the most expensive wine collections in the country. You can find this collection in their wine cellar. Since their collection is so expensive, they also made an effort to…
DuhndalThe first content update for One-armed robber is here, with 2 new maps, and special police units, there is a lot to get excited about! Maps Liberty Hawk bank {STEAM_CLAN_IMAGE}/44504757/dc5fac390d4b6e59313afb40935708beecd8df47.png A small…
DuhndalThe game has been out for a couple of days, and we've fixed some bugs that we missed before release, and tweaked some things to make the game easier for new players. *New players now start with a suppressor and a lock pick, making it…
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | OAR.exe | windows 64 |
It runs on public data and somebody's spare time.
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