Alien Swarm: Reactive Drop

Alien Swarm: Reactive Drop

Developers
	Reactive Drop Team
Engines
	Source
Release dates
Windows	April 20, 2017
Taxonomy
Monetization	Freeware
Microtransactions	None
Modes	Multiplayer
Pacing	Real-time
Perspectives	Bird's-eye view
Controls	Direct control
Genres	Action, Shooter
Themes	Sci-fi
Series	Alien Swarm

Alien Swarm
Alien Swarm	2010
Alien Swarm: Reactive Drop	2017

Alien Swarm: Reactive Drop is a multiplayer bird's-eye view action and shooter game in the Alien Swarm series.

General information

Steam Community Discussions

Availability

Source	DRM	Notes	Keys	OS
Steam		Free download.

All versions require Steam DRM.

Game data

Configuration file(s) location

System	Location
Windows	<path-to-game>\reactivedrop\cfg\
Steam Play (Linux)	<Steam-folder>/steamapps/compatdata/563560/pfx/

Save game cloud syncing

System	Native	Notes
Steam Cloud		Syncs save games and settings.

Video

Graphics feature	State	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
Field of view (FOV)		Change using "fov_desired" in the game's developer console. Limited to between 20 and 75 degrees in third person and between 20 and 120 degrees in third person.
Windowed
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
60 FPS and 120+ FPS		Capped to monitor refresh rate plus 1. Can use the console command "fps_max" to change the FPS limit; set to 0 for uncapped framerate.
High dynamic range display (HDR)		See the glossary page for potential alternatives.

Input

Keyboard and mouse	State	Notes
Remapping
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support		XInput only; Must be enabled in Options → Controller
Full controller support		Some menus require mouse input.
Controller remapping
Controller sensitivity		The 360controller_pc.cfg file under <path-to-game>\reactivedrop\cfg\ needs to be modified.
Controller Y-axis inversion

Controller types

XInput-compatible controllers
Xbox button prompts
Impulse Trigger vibration

DualShock 4 controllers		See the glossary page for potential workarounds.

Generic/other controllers		See the glossary page for potential workarounds.

Additional information
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M

Audio

Audio feature	State	Notes
Separate volume controls
Surround sound
Subtitles
Closed captions
Mute on focus lost
Royalty free audio		Uses music from Valve, Incompetech, and other streaming-safe sources.

Localizations

Language	UI	Audio	Sub	Notes
English
Simplified Chinese
Traditional Chinese				Incomplete translation.
Czech
Danish
Dutch
Finnish
French
German
Hungarian
Italian
Japanese
Korean
Norwegian
Polish				Very poor translation.
Portuguese
Romanian
Russian
Spanish
Swedish
Thai
Turkish
Ukrainian

Network

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

Multiplayer types

Type	Native	Players	Notes
Local play		32	Co-op, Versus Use Nucleus Co-op.
LAN play		32	Co-op, Versus 8 (Co-op) or 32 (Deathmatch) marines, up to 32 total including spectators
Online play		32	Co-op, Versus 8 (Co-op) or 32 (Deathmatch), up to 32 total including spectators

Connection types

Type	Native	Notes
Matchmaking		Lobby search
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	27014-27050
UDP	1200, 27000-27015

Universal Plug and Play (UPnP) support status is unknown.

Other information

API

Technical specs	Supported	Notes
Direct3D	9.0c
Shader Model support	2, 3

Executable	32-bit	64-bit	Notes
Windows

Middleware

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

Console commands

Games running on the Source engine can utilize Source Engine Console Commands for various tasks.

Enabling the console in Source games[citation needed]

Launch the game From the main menu select Options Select the Keyboard tab Click the Advanced button Check the box next to Enable developer console (~) 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

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]
Find the game in your Steam Library Right-click the game name Select Properties Select Set Launch Options... Input your selected launch options and separate each command with a space Press OK Launch the game

System requirements

Windows
	Minimum
Operating system (OS)	XP
Processor (CPU)	Intel Pentium 4 3.0 GHz
System memory (RAM)	2 GB
Hard disk drive (HDD)	10 GB
Video card (GPU)	ATI Radeon X800 Nvidia GeForce 6600 or better 128 MB of VRAM DirectX 9.0 compatible Shader model 2.0 support