Alien Swarm

From PCGamingWiki, the wiki about fixing PC games
Alien Swarm
Alien Swarm cover
Developers
Valve Corporation
Engines
Source
Release dates
Windows July 19, 2010
Alien Swarm guide at StrategyWiki
Alien Swarm at Wikipedia
Alien Swarm
Alien Swarm 2010
Alien Swarm: Reactive Drop 2017

Key points

Game is completely free
Small community

General information

Unofficial Alien Swarm Wiki
Steam Community Discussions

Availability[edit]

Source DRM Notes Keys OS
Steam
Icon overlay.png
Free download.
Windows
All versions require Steam DRM.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows <path-to-game>\swarm\cfg\

Save game cloud syncing[edit]

System Native Notes
Steam Cloud
Syncs save games and settings.

Video settings[edit]

In-game video settings.
In-game video settings.
Graphics option Option WSGF Notes
Widescreen resolution
Multi-monitor
Ultra-widescreen
21:9 resolutions are selectable under the 16:9 resolution options. Position of HUD elements is incorrect.
4K Ultra HD
Windowed
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
60 FPS
The cap can be changed with the "fps_max <number>" console command to any desired number +1, so 61 for a 60fps cap.
120+ FPS
See 60 FPS notes.

Input settings[edit]

In-game key map settings.
In-game key map settings.
Keyboard and mouse Native Notes
Remapping
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support
XInput only; open the console and enter exec 360controller_pc.[1]
Full controller support
Menus require mouse input.
Controller remapping
Controller sensitivity
The 360controller_pc.cfg file under <path-to-game>\swarm\cfg\ needs to be modified.
Controller Y-axis inversion
Additional information
Button prompts
Controller hotplugging
Haptic feedback

Audio settings[edit]

In-game audio settings.
In-game audio settings.
Audio options Native Notes
Separate volume controls
Surround sound
Subtitles
Closed captions
Mute on focus lost

Localizations

Language UI Audio CC Notes
English

Network[edit]

For more information, see the "Source Dedicated Server" section of our Source engine article.

Multiplayer types

Type Native Players Notes
LAN play
4 Co-op
Online play
4 Co-op

Connection types

Type Native Notes
Matchmaking
Peer-to-peer
Dedicated
Self-hosting
Direct IP
Open the console (~) and enter connect followed by the IP and port.

Ports

Protocol Port(s) and/or port range(s)
TCP (outbound) 27014-27050
UDP (outbound) 1200, 27000-27015

Issues fixed[edit]

Purple and black broken textures[edit]

A generic fix for this issue can be found on our Source engine page.

Crashes and overheating[edit]

  • CPU Overheating Issues: This threads walks you through running a simple stress test on your CPU to help you identify whether your cooling equipment is doing its job.
  • Fix for temp problems/crashing: This threads dictates how Vsync and multi-core rendering can be adjusted to eliminate problems relating to overheating and crasing. This tip can also increase performance.
  • Swarm.exe has stopped working: If you're having problems with Swarm.exe crashing, this Steam Support thread may help you if the problem's related to Shaderapidx9.dll. You can check if Shaderapidx9.dll is the cause of the problem by following the instructions on this thread.

Ping & Latency[edit]

  • Windows 7 Ping Spikes (Fix): This thread explains how to disable a network-throttling feature shipped with Windows 7. It's more likely to fix ping-related problems, but has been reported to improve frame rates.
  • WLAN Optimizer: If you play over a wireless connection, you may occasionally experience 'lag spikes' due to Windows checking periodically for new wireless networks. Using this program, you can disable the 'background scan' and improve your gaming wireless experience.
  • Hosting? Do everyone you meet a BIG favor. PLEASE!: When people connect to your listen server, their client has a "rate" setting. By default it is set at 20,000 (bytes/second). If you're home internet cannot upload 60,000bytes/second (3 people connected) then you're going to have to set a sv_maxrate, to limit each player's rate so that everybody gets their own dedicated chunk of bandwidth, instead of their computers fighting for a piece.

Other information[edit]

API[edit]

Technical specs Supported Notes
Direct3D 9
Shader Model support 2, 3
64-bit executable

Middleware[edit]

Middleware Notes
Physics Havok Heavily modified variant.
Audio Miles Sound System
Cutscenes Bink Video
Multiplayer Steamworks

Console commands[edit]

Games running on the Source engine can utilize Source Engine Console Commands for various tasks.
Enabling the console in Source games[citation needed]
  1. Launch the game
  2. From the main menu select Options
  3. Select the Keyboard tab
  4. Click the Advanced button
  5. Check the box next to Enable developer console (~)
  6. Click Apply

Notes

Press ~ to open the console.
Some commands may first require you enabling sv_cheats. You can do so with sv_cheats 1.
Many servers will not allow you to play with cheats enabled, or will disable them upon entering the server.
Users without a US keyboard could experience some problems.

Launch options[edit]

View this Steam Support Article regarding launch options as well as the relevant Valve Developer wiki page for further information and a list of useful Source engine launch options.
Enabling a launch parameter[citation needed]
  1. Find the game in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input your selected launch options and separate each command with a space
  6. Press OK
  7. Launch the game

System requirements[edit]

Windows
Minimum Recommended
Operating system (OS) XP Vista, 7
Processor (CPU) Intel Pentium IV 3.0 GHz Intel Core 2 Duo 2.4 GHz
System memory (RAM) 1 GB (XP)
2 GB (Vista)
Hard disk drive (HDD) 2.5 GB
Video card (GPU) Nvidia GeForce 6600
ATI Radeon X800
128 MB of VRAM
DirectX 9.0 compatible
Shader model 2.0 support
Nvidia GeForce 7600
ATI Radeon X1600
Shader model 3.0 support

References

  1. 360 controller support needed. :: Alien Swarm General Discussions