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.
All Reviews:
Mostly Positive (212) - 78% of the 212 user reviews for this game are positive.
Release Date:
Mar 1, 2019

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Intruder is a fully-playable 5v5 multiplayer game... but we ain’t done yet! Intruder’s loyal alpha-testers have been playing the game and the most-requested feature is bringing the game to Steam. Here it is!

Launching a multiplayer game on Steam is a big job and we’re a small team. Early Access will help us make sure we do it right! Your purchase of Intruder during Early Access helps fund continued development of Intruder, and gives you a voice during development.”

Approximately how long will this game be in Early Access?

“We anticipate that Intruder will be in early access for 12-24 months.”

How is the full version planned to differ from the Early Access version?

“We want to add…
  • Graphics updates
  • More weapons
  • More gadgets
  • More missions
  • More official maps
  • More mod tools
We’re curious about...
  • Costumes and customization
  • AI controlled opponents
  • Deep lore
We want to hear from new player and old fans what features they most want and use that feedback to drive development.”

What is the current state of the Early Access version?

“Intruder is a already a fully-playable multiplayer game with lots of features:
  • Five-versus-five gameplay: guards vs. spies
  • There are currently 4 weapons and 12+ gadgets in the game.
  • Four official levels in the game with tons of player-created levels (many of which we think are rad).
  • Map creation tools and a friendly community of modders.
  • Custom missions / gamemodes can be created for each map.
  • Stat tracking connected to your Steam profile.
There's a ton of game here, and we're just getting started.”

Will the game be priced differently during and after Early Access?

“We will increase the price of the game as we complete new features and eventually leave Early Access.”

How are you planning on involving the Community in your development process?

“We've always developed Intruder with deep involvement from our community of alpha players. Intruder has an extremely active Discord with players, map-makers, and community-run tournaments. We're coming to Steam to invite an even larger group of players to join us in making Intruder be the best possible stealth multiplayer game ever.”
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Recent updates View all (2)

March 9

Update 1169 + Roadmap preview

Hello agents and welcome to our first patch/update: Build 1169! And you can play it now!

Before we get down to the specifics, we want to say thank you to everyone and that the launch has been amazing! We even managed to get to the Steam front page as a best seller, so thank you all!

With that we got a lot of immediate feedback. There were definitely a lot options and settings customizations that people wanted so we made sure to get those in with this first patch. This includes gameplay settings like hold to lean or hold to aim-down-sights instead of toggle only, various graphics settings, and mic boosting. You also have volume sliders for every player in-game as well. Check them out in "New Additions."

At the end of this article we will also write a preview for the roadmap and what's to come for the game. Steam launch was a big milestone for us but it's really only the beginning.

New Additions
  • Binoculars will now send photos and sender name to teammates even if they don't have binoculars. Great for silent communication and info sharing.

  • Unified server list now has an "All" region which shows all rooms on all regions at once
  • Microphone volume boosting added to options menu
  • Volume sliders added to each player, so you can turn them down if their mic is too loud
  • Mouse inverted toggle added to options menu
  • Toggle VSync option added to options menu
  • Frame rate limit slider added to options menu (only works when VSync is off)
  • New "Gameplay" section added to options menu
  • Toggle or hold Lean options added
  • Toggle or hold Aim-down-sights options added

  • Shotgun pickup now says "You found a non-lethal Shotgun"
  • Vote kick cool down changed to 5 minutes
  • Tool tips updated to reflect current settings for ADS
  • Tutorial updated to suggest default ADS controls
  • Put message on Superboss logo page that Intruder is a work in progress
  • Reflective damage for all kinds of attacks (including headshot) turned down to 10 instead of taking the full damage of the attack
  • Official rooms will be set to have All-round Reflective damage on so new players will experience fewer TKs
  • Energy recovery speed at < 15 sped up a little bit
  • Sweet new main menu background

Map Maker
  • Shotgun pickups and shotgun ammo pickups added to Map Maker
  • Shotgun added to EquipmentManager

  • Riverside Server Room plaque visible again
  • Removed ping limit kicking in offline mode (Tutorial/Map Maker testing)
  • You will auto un-lean when respawning
  • Stuck vote kick menu if person leaves fixed
  • Fix for empty spaces in Team menu and player info panels with wrong info
  • Simplified and reworked team switching code should eliminate some other problems
  • Fixed early round TKs not registering in rooms without reflective damage on
  • Fixed poor deforming remote charges when they touch window frames

Also, we have begun separating out rooms into more types such as Serious Play - Microphone Required, Casual, and Beginners rooms. Please adhere to the rules of the rooms or feel free to make your own. Remember that rooms you create are hosted on our dedicated servers, so there is no difference in speed to official rooms.

The roadmap is something a lot of people have been asking for. This is just a small preview of things we will be doing and some things we want to do. We will have a separate post as well going into more detail about the Roadmap and the future of the game.

Coming Soon
  • A new version of the website with much improved and detailed player profiles, roadmap, and other cool features:

  • Quality of life improvements and more user settings
  • Better server/room filtering
  • Various graphical improvements and cleanups of official maps (including Oceanside)
  • More map maker tools for your custom maps
  • Options to limit spectating to just teammates for competitive matches

Bigger Stuff
  • Move Map Maker over to Steam Workshop
  • Redone HUD and Menus
  • Redone Inventory System
  • Physics enhanced animation system
  • New Map: Codename Facility
  • New Map: Codename City Skyscrapers
  • More weapons and gadgets (some map/mission specific)
  • More mission types/game modes

Even bigger
  • AI/bots
  • Dedicated servers that can be run by players as well (Current rooms are hosted on our dedicated severs)
  • More player and weapon customization
  • Stats and progression system hooked up in-game and website
  • Clan and competitive game support
  • Fleshed out lore and maps of the island Intruder takes place on

This is just a preview of what's to come, but expect a larger Roadmap post detailing some of these out and showing examples of what we have on them already.

Please drop by the Discord any time at to hang out with Devs and the community. New clans and competitive matches are starting to form there as well (more on that later).

Again, thank you all so much for the support and we hope you are enjoying Intruder.
16 comments Read more

February 28

All the Updates so far

Hello agents and welcome to our first announcement!

Since releasing on Steam we've been able to make a number of updates in only a couple weeks. We thought we'd detail out all of those releases here so you can get a chance to see what is new in the Steam version and what updates we've made already.

Build 1108

New Additions
  • Intruder is now on Steam
  • Shotgun - Fires powerful beanbag rounds
  • Mountainside Night time version
  • Remote Charges have fancy priming sound and detonation lights
  • New explosion effects
  • New sleek material for SMG and Pistol
  • New lock picking graphics
  • New keypad unlock graphics
  • Mountainside now has a weapons case
  • Computer hack terminals received graphical overhaul.
  • Pistol now has red optic sights
  • Lighting and post effects overhaul for Cliffside & Mountainside
  • New graphics for helipad, helicopter, and antenna on Mountainside
  • More pictures on Cliffside
  • Player Info panels added to player names in team panel
  • Various functions added in Info Pane
  • Friend tab enables you to invite your steam friends to the game
  • Round timers (optional)
  • /rtimer admin command to set round timer by seconds (60 - 1200, 0 to turn off)
  • many new admin commands
  • Commands for resetting glass, decals, camera speed, etc. for filming scenes
  • Third person mirror camera now has cute visible camera to other players
  • Fancy new radio glow when transmitting
  • New mortar graphics
  • New mirror camera image effects to make more spy-like
  • Spectators can be viewed from Team menu
  • Spectator smooth camera redone
  • Spectator follow camera made better and won't put you "under water" anymore
  • Remote charges must land on surface for a period of time before they are ready to detonate
  • SMG base damage changed from 25 to 20
  • Pistol sway turned down a bit
  • Laser Sensors laser effectiveness made more consistent and will react to any movement
  • Force multiplier differences per bullet on advanced materials or rigidbodies
  • TK ban now has menu timer
  • Neat zipline material
  • Smoke Grenades made less crazy and smoke should collide with wall better
  • Fade off time for CS gas made faster and more consistent
  • Fewer smoke and CS grenades in inventory by default
  • Riverside river actually curves now
  • Ragdoll thumping sounds turned down a bit
  • Tighter offline mode for Map Maker testing
  • Disabled auto talk
  • Red dot pickups made easier to see in the dark
  • Mountainside Stage Left zipline made easier to hit so you don't fall to your death quite as much you clumsy dude
  • Default keybinds changed: Sprint - shift, Crouch - control, Prone - added secondary as z
  • Tons of other small changes based on moving to Steam
  • Optimized radio voice chat and should fix any issues with radio transmissions cutting off too early
  • Red dot crosshair follows leaning correctly
  • General HUD color finally reset to correct saturation
  • Fixed hands not landing after smashing glass
  • Players teleporting instantly across map when touching certain colliders fixed
  • Disabled weird first person shadows visible elsewhere
  • Should have fixed mega hyper sky ragdolls that blot out the sun from time to time
  • Multiple spawning issue fixes
  • Fixed issue where creating room sometime doesn't work and leaves you stuck in menu
  • Multi-push-spam fixed
  • Riverside hill wall made a steep slope
  • Tons of other small bug fixes and changes

Build 1113

  • HUD re-enable set back to 'Q + P', can also be re-enabled by opening the menu, and by typing in the chat box
  • Removed loading buttons from start news page
  • Added build/version numbers to start news page
  • Some player upvoting optimization
  • Fixed Remote Charges pickup graphic not disappearing after picking it up
  • Fix attempt for keypad sensitivity boost bug
  • Doors should lock on the first round

Build 1127

New Additions
  • Completely new Tutorial level added! Will walk you through much of the basics and some advanced features
  • Energy amount will turn red when you are below 30
  • Tutorial buttons added to main menu
  • Changed changelog button to wiki changelog
  • Changed forum button to Steam forums
  • Changed "ROOMS" to "PLAY" at top
  • A few bugs

Build 1137

New Additions
  • Highlighting the pin you are on while lock picking is back
  • Official maps will be highlighted in the map list
  • Can drag red dot onto SMG to equip
  • Messages when you save new shortcuts for items
  • Put in a warning if you try to "drop stuff" from your inventory
  • Keypad code on the tutorial changed to something...
  • More images in the tutorial for help
  • Tutorial updated to show difference between guards and intruders
  • Turned down the amount of time the pick up messages appear on screen to 2 seconds instead of 4
  • Attempt to fix server joining map switching issues (please work well for the love of)
  • Fixed keypad codes on custom maps not being random
  • Fix for take admin command in info panel not working
  • Fix for disappearing banana or other item bug on pick up

Build 1142

New Additions
  • High ping players with terrible connections can be auto kicked (adjustable)
  • Sweet new main menu background
  • Fixes to recoil and camera sway

Wooo that's a lot of stuff. We're going to keep making updates through the release so please let us know what you encounter or what is unclear to you.

As usual we'll always be hanging out in our Discord as well at

See you all in game and happy 'truding!

- Superboss Games
12 comments Read more
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About This Game

Intruder is the stealth multiplayer experience. We were inspired by the great single-player campaigns of Metal Gear Solid, SWAT 3, Deus Ex, and Splinter Cell, and aim to bring that gameplay into a team-based multiplayer shooter. Intruder allows for stealth, teamwork, tactics and environmental interactions never before seen in a multiplayer game. Lure enemies into motion-detectors near explosive traps. Watch enemy movement through live security cameras and alert your teammates using the hand radio. Use real SWAT hand signals to communicate silently when enemies are nearby. In Intruder, amazing stories and emergent gameplay come from the players’ actions to provide an experience you will never forget.

Key Features

  • Team-based stealth multiplayer: Guards vs. Intruders.
  • Immersive FPS: climb, crouch, crawl, and swim through the environment.
  • Use gadgets to trick, trap, distract and outsmart your opponents.
  • Eavesdrop on the opposing team with spatial 3d voice chat.
  • Use ragdoll physics to launch your foes out of windows or to play dead while the enemy walks right past you.
  • Truly interactive buildings with working security cameras, spotlights, sliding windows, ventilation shafts, and elevators.
  • Stealth-based missions with multiple objectives and escape routes.
  • Powerful Unity3d level editor plugin to create your own Intruder maps and game modes
  • Regular updates and new features based on community feedback!

Quotes from actual Intruder players

... now on Steam!

Mature Content Description

The developers describe the content like this:

Gun/weapon violence and blood

System Requirements

Mac OS X
    • OS: Windows 7 or Newer
    • Processor: 64-bit, 2 GHz or Faster
    • Memory: 4 GB RAM
    • Graphics: Intel HD 3000
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    • OS: Windows 7 or Newer
    • Processor: 64-bit, 3 GHz or Faster
    • Memory: 8 GB RAM
    • Graphics: Geforce GTX 750
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    • OS: Mac OS X 10.8
    • Processor: 64-bit, 2 GHz or Faster
    • Memory: 4 GB RAM
    • Graphics: Intel HD 3000
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    • OS: Latest OS X
    • Processor: 64-bit, 3 GHz or Faster
    • Memory: 8 GB RAM
    • Graphics: Geforce GTX 750
    • Network: Broadband Internet connection
    • Storage: 1 GB available space

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