Steam app 518150 · updated 13 Sep 2026, 00:11 UTC
The ultimate spy-vs-guards simulator. Carefully sneak your way to the objective as Intruders or use the wide variety of tactical gadgets to trap your opponents as Guards. Intruder allows for stealth, teamwork, and environmental interactions never before seen in a multiplayer game.
499 hourly samples, with the daily peak drawn over them. Weekends are shaded.
91 months, March 2019 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.
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.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 323 hourly samples from 14 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 177 hourly samples. Each dip is a night. Weekends are shaded.
Intruder was released on 1 Mar, 2019.
Gun/weapon violence and blood
| Language | Full audio |
|---|---|
| English | ● |
A blank audio cell means full audio was not marked in the returned language list.
Checkpoint and New Gadgets Released!
Watch on Steam
Cliffside 2.0 Released!
Watch on Steam
Intruder Steam Announcement
Watch on Steam50 developer announcements, Jul 2023 to Aug 2026 · times in UTC
Hello agents, Just added a few QOL updates and fixes in this latest version. Fixes & Updates New unified loading system should eliminate any "duplicate photon view" errors when switching between maps. Dead/spectator voice chat is now panned…
Patch notesHello agents, In this update, we were able to boost performance on Checkpoint, with some players reporting an additional 100+ FPS on the map. We wanted to release that as soon as possible since we know how important that is too enjoying the…
Patch notesHello agents, just some quick fixes from yesterdays update Fix for lighting syncing incorrectly on Checkpoint and Phil's Saloon Fix for Checkpoint change log always displaying on join
Patch notesHello agents, Just a small update to fix some bugs and keep things running smoothly. On top of that we will be running a 150% XP bonus for one week and keeping Summer Sale unlocks open for that time. Fixes include: Fix for round timer…
Patch notesHello, Agents. The Steam Summer has arrived once again, which means Intruder is 50% off for the Steam Summer Sale. As always, XP gains have been increased by 200% for the sale which will last from June 25th to July 9th, 2026! While the sale…
Mattbatt56Hello agents, Had some quick fixes to the scoreboard and one new change: Fixed icons not fading correctly on 2nd set Fixed score not updating correctly when you join the room mid-match You can now have spaces in map names of when using the…
Patch notesGreetings, Agents.A new update has arrived for Intruder alongside the return of competitive play. Whether you're jumping into matches or preparing for league competition, now is the perfect time to get involved. Intruder Competitive League…
robGreetings, Agents. We're introducing several new updates to both Oceanside and the Checkpoint beta maps. Your feedback continues to improve Intruder, and we're eager to hear what you think. We've also got Mapmaker improvements and...are we…
MitchyDHello agents! With all the new players joining, we wanted to make some fixes and changes based on your feedback. Additions + ChangesOn-screen notification telling you to look at the objective screen when joining a new official map Timed…
Patch notesAgents, the time has come...Checkpoint -- the next official map created by Superboss Games -- is now available in beta. We're incredibly excited about this one already, especially after our recent Secret Base Alpha playtests. Checkpoint is…
MitchyDGreetings, Agents.It's nearly Valentine's Day, but we just couldn't wait. To help spark new connections and reignite heated rivalries, we're adding a Mission Log to Intruder, which is 50% off during Steam PvP Fest 2026. From February 9-16 @…
MitchyDHappy Holidays, Agents! To celebrate the season, Intruder is 50% off during the Steam Winter Sale, which runs from Thursday, December 18, 2025 until January 5, 2026. Festivities this year also include a 200% XP boost, which will help unlock…
MitchyDHello Agents! Just releasing a small update after our Halloween event to fix some things. Fixes Fix so you can't use certain hats you don't own yet Fix for some custom maps doors being zeroed out in a bad way Fix for initial laser sensor…
Patch notesHappy Halloween, Agents!Intruder is 50% OFF in celebration of the spooky season! As ever, we've also activated a 200% XP boost until November 7, 2025 -- and you're going to want to take advantage of the double XP gains...Cliffside Halloween…
MitchyDFix for levels and XP not showing up in main menu Unity 2020 version upgrade, all map makers should update as well
Patch notesFinally figured out a reason for the occasional player join freezes and it had to do with smoke grenades physics simulations. That is fixed now! So: Player join freeze fix, for real this time Banana's not affecting players inconsistency…
Patch notesGreetings Agents! Intruder is now 50% OFF for the Steam Autumn Sale. On top of that there is a 200% XP boost until the end of the sale, so jump on and check out the new update:The Intruder dev team has been working hard on some major…
Mattbatt56Greetings, Agents. Superboss Games is excited to partner with our pals at Ctrl Freak for an all-new Steam bundle featuring two team-based tactical shooters: Intruder and Phantom Squad.The Intruder + Phantom Squad Bundle is available now…
MitchyDIf you were experiencing issue in this recent update check out this patch we just put out with some hotfixes:Fix for map vote getting stuck at end of roundFix for doors not spawning open upon room joinFix for Cliffside Raid extraction van…
Patch notesHello, Agents. This year we wanted to add even more to our Summer Sale Update as Intruder is still 50% off for the rest of the Steam Summer Sale. If you missed part one make sure to check the addition of the new Remote Speaker gadget.Door…
robHello, Agents. The Steam Summer Sale has arrived, which means Intruder is 50% off for the Steam Summer Sale. As usual, XP gains are boosted 200% during the duration of the event -- so you can get Intruder on deep discount and earn double XP…
MitchyDGreetings Agents, Have you been longing for the ultimate Intruder experience? Something like a league where you can play competitive matches of Intruder with a team of the best agents out there? Look no further: The Intruder Competitive…
Ryguytheguy{STEAM_CLAN_IMAGE}/34530436/cb9d7febbb67173eda330ee2e6e696ad41c39487.png Greetings, Agents! Not only is Intruder is on sale for 50% off, and 200% XP is active, until 4pm EST on April 8, 2025 -- but we're excited to introduce an all-new…
MitchyD{STEAM_CLAN_IMAGE}/34530436/91b22766de4127b28362ce1082c5d76e604b7f9c.png Attention, Agents! The Spring 2025 Update is available now, and Intruder is 50% off until March 20, 2025 . Until then, you'll also earn 200% XP in all Ranked matches.…
MitchyDHello agents, just putting out some fixes for the most recent update: Fix for Mac to Windows map mismatch on some official maps Another fix for chairs with physics affecting FPS when joining a room for some players Fix for ziplines allowing…
Patch notes{STEAM_CLAN_IMAGE}/34530436/f46f2247d7a59300ca7e284c1a33c1f0f53001d8.png Greetings, Agents. We have an assortment of Intruder improvements going live today, which should not only improve your gameplay experience with specific weaponry, but…
MitchyDFixes and Changes Small changes to Dragon AR sounds No longer rank matches if rounds or sets are less than default Turned off Mountainside Holiday, thank you for joining Agents!
Patch notes{STEAM_CLAN_IMAGE}/34530436/122f5d997e6ee3bf387687b3a36e4592f8f17ee4.png Happy Holidays, Agents! Intruder is 50% off during the Steam Winter Sale, which runs until January 2, 2025. To celebrate the season, the Superboss Games team got you a…
MitchyDFixes Mountainside name fix in map select Super slip zones working again Fix for photos having transparent parts when looking at some particle effects No longer let people goomba stomp players that are on ziplines
Patch notes{STEAM_CLAN_IMAGE}/34530436/5947b87bc34ad946e5f13e3902bb9999bfca2ff6.png Greetings, Agents. Not only is Intruder 50% off during Steam's Autumn Sale, we're excited to unveil that Mountainside 2.0 is officially leaving beta. With the full…
MitchyDFixes Fix: now need to hold control during vote screen if you haven't voted yet and want to use the screenshot, console, or hide UI keybinds that are on F keys Fix for stat sending bug
Patch notes{STEAM_CLAN_IMAGE}/34530436/506e376bcd6ce8e27752e2a3de04cd21809f7a88.png Greetings Agents, Have you been longing for the ultimate Intruder experience? Something like a league where you can play competitive matches of Intruder with a team of…
Ryguytheguy{STEAM_CLAN_IMAGE}/34530436/0834a12f3ca200d9c64669df08d657d374da54b0.png Greetings, Agents. Intruder is 50% off for the Steam Summer Sale! To celebrate this momentous occasion, we’re releasing Mountainside 2.0 even earlier than expected…
MitchyDQuick fix for lockpick not working after jump proning. The rest of the update is here again: https://steamcommunity.com/games/518150/announcements/detail/7075798737620671698 Carry on agents!
Patch notesFix for a bug with the Mountainside attack helicopter getting a little trigger happy. All other updates from this version here: https://steamcommunity.com/games/518150/announcements/detail/7075798737620671698
Patch notesFixes and Additions New Intruder desktop icon on Windows (Might need to reinstall for it to appear) Fix for exiting rooms while map is changing sometimes forcing a room rejoin Fix for lock picking through glass, walls, while really far from…
Patch notesFixes Went through a ton of testing to ensure more proper room and map joining/syncing code. Should stop issues with duplicate photon views or mismatched maps Rewrite of loading overlay scripts for map loading/lobby Error log/console can…
Patch notesHope you all had a great time during the Steam FPS Fest! Keeping 2x Bonus XP for another day. Fixes Another fix for map version loading problems (newer, older, disk issue), should be all set! And thank you everyone for the help testing and…
Patch notesHello Agents! Got some quick fixes and additions for you all during the Steam FPS Fest. Please update your game for the following: Fix for map version loading problems (too new, too old, already loaded, etc.) Turned down Silver Specter…
Patch notes{STEAM_CLAN_IMAGE}/34530436/d7d8240e5bf992ccde9b83382c278513b896496b.png Welcome, Agents. The Steam FPS Fest has begun, and Intruder is on sale for 50% off! Our stealth multiplayer FPS is discounted during the entire event, which runs April…
MitchyDUpdated inventory and map list performance Fix for Mac Microphone permissions Fix for super powerful regular knockdown Fix for glass not loading from Map Maker Various small fixes
Patch notes{STEAM_CLAN_IMAGE}/34530436/f07f8203a8e1b8aae7d69a8f529fab8cbfc864c5.png Greetings, Agents. The clocks have changed, April Fool's has arrived, and Intruder's Spring 2024 update is here -- and this one packs a punch. But, as the seasons…
MitchyDEnd of Holiday Sale and Winter unlocks and levels for now! Thank you everyone for joining in the festivities! Flares now also work on ragdoll camera
Patch notesFix for Riverside Holiday sometimes loading improperly. Happy Holiday again everyone! For more info on this update check out: https://steamcommunity.com/games/518150/announcements/detail/3865841447732696059
Patch notes{STEAM_CLAN_IMAGE}/34530436/265e96fa9fe6dd16697ab492507cd9a6cd9e4d91.png Seasons Greetings, Agents, and welcome to the Winter 2023 update! Intruder's holiday festivities are officially in full swing. The Winter 2023 event runs until January…
MitchyD{STEAM_CLAN_IMAGE}/34530436/6ef7fe1afdfcf64b65b20f3bd20eeefebef5d33e.png Greeting Agents, Here at Superboss Games HQ, the leaves are turning, the snow is beginning to fall, and Thanksgiving is upon us. It's hard not to be grateful for…
MitchyD{STEAM_CLAN_IMAGE}/34530436/6fec346a334058295400133fb25c00c62374312d.png Happy Halloween, agents. Whether you're tricking enemy squads with a disorienting CS Grenade, or treating your team to a too-close victory escape on Cliffside Raid…
Rob StormFix for timers on custom maps and Oceanside daytimeindex command now only requires admin
Patch notes{STEAM_CLAN_IMAGE}/34530436/c5a24831b37f8374cacd606bd192bdb6dbec3d76.png Greeting, Agents, and welcome to Intruder’s Autumn 2023 Update. As the seasons change, the weather turns, and the days get shorter, it felt right to bring the shifting…
MitchyD{STEAM_CLAN_IMAGE}/34530436/29915538db594e2e77b249c296d2b314436d30b7.png Update 2711 That dastardly banana has been fixed so you can disarm them again. Also some Cliffside 2.0 updates and fixes based on the playing so far.…
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | IntruderLauncher.app | macos | ||
| Launch | IntruderLauncher.exe | windows 64 |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG