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Left 4 Dead 2: updates, settings and interface

Game updates, plugin versions and improvements to our interface with a traceable history.

Recorded, available and installed are different states. Your actual installation status and suitable updates are shown in the server panel.

Setting Deployed state checked

Left 4 Dead 2: settings

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Changed settings (11)
  • Hostname: Changed HOSTNAME

    Name des Servers in der Serverliste (hostname).

    Before

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.
  • Default Map: Changed SRCDS_MAP

    Startkarte (z.B. c1m1_hotel)

    Before

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.
  • Auto Update: Changed AUTO_UPDATE

    1 = beim Start updaten

    Before

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.
  • Max Players: Changed MAX_PLAYERS

    Maximale Spielerzahl (+maxplayers)

    Before

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.
  • LAN mode (sv_lan): Changed sv_lan

    1 = local network only, not visible or queryable from the internet. Keep 0 on a rented server.

    Before

    Setting
    sv_lan
    Default
    0

    After

    Setting
    sv_lan
    Default
    0
  • Enable cheats (sv_cheats): Changed sv_cheats

    Allows cheat console commands. With 1, Left 4 Dead 2 stops answering server queries: the server disappears from the server browser and from server lists. Joining via connect still works.

    Before

    Setting
    sv_cheats
    Default
    0

    After

    Setting
    sv_cheats
    Default
    0
  • Game mode (mp_gamemode): Changed mp_gamemode

    Co-op, Versus, Survival, Realism, Realism Versus or Scavenge. Vanilla ignores this direct config line. Choose the mode when starting a map, e.g. map c1m1_hotel versus.

    Before

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge

    After

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge
  • Difficulty (z_difficulty): Changed z_difficulty

    Zombie difficulty: Easy/Normal/Hard/Impossible (Expert).

    Before

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible

    After

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible
  • Survivor limit (survivor_limit): Changed survivor_limit

    Vanilla: 1 to 4, default 4. Vanilla ignores this direct config line. Changes require SourceMod with sm_cvar; more than 4 additionally requires a multiplayer plugin.

    Before

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4

    After

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4
  • Voice chat (sv_voiceenable): Changed sv_voiceenable

    1 = players can talk, 0 = disabled.

    Before

    Setting
    sv_voiceenable
    Default
    1

    After

    Setting
    sv_voiceenable
    Default
    1
  • Max player zombies (z_max_player_zombies): Changed z_max_player_zombies

    Vanilla: 0 to 4, default 4. Number of human infected in Versus mode. Vanilla ignores this direct config line; changes require SourceMod with sm_cvar.

    Before

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4

    After

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4
Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Setting Deployed state checked

Left 4 Dead 2: settings

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Changed settings (11)
  • Hostname: Changed HOSTNAME

    Name des Servers in der Serverliste (hostname).

    Before

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.
  • Default Map: Changed SRCDS_MAP

    Startkarte (z.B. c1m1_hotel)

    Before

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.
  • Auto Update: Changed AUTO_UPDATE

    1 = beim Start updaten

    Before

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.
  • Max Players: Changed MAX_PLAYERS

    Maximale Spielerzahl (+maxplayers)

    Before

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.
  • LAN mode (sv_lan): Changed sv_lan

    1 = LAN only, 0 = public.

    Before

    Setting
    sv_lan
    Default
    0

    After

    Setting
    sv_lan
    Default
    0
  • Enable cheats (sv_cheats): Changed sv_cheats

    Allows console commands. Disable on public servers.

    Before

    Setting
    sv_cheats
    Default
    0

    After

    Setting
    sv_cheats
    Default
    0
  • Game mode (mp_gamemode): Changed mp_gamemode

    Co-op, Versus, Survival, Realism, Realism Versus or Scavenge. Vanilla ignores this direct config line. Choose the mode when starting a map, e.g. map c1m1_hotel versus.

    Before

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge

    After

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge
  • Difficulty (z_difficulty): Changed z_difficulty

    Zombie difficulty: Easy/Normal/Hard/Impossible (Expert).

    Before

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible

    After

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible
  • Survivor limit (survivor_limit): Changed survivor_limit

    Vanilla: 1 to 4, default 4. Vanilla ignores this direct config line. Changes require SourceMod with sm_cvar; more than 4 additionally requires a multiplayer plugin.

    Before

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4

    After

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4
  • Voice chat (sv_voiceenable): Changed sv_voiceenable

    1 = players can talk, 0 = disabled.

    Before

    Setting
    sv_voiceenable
    Default
    1

    After

    Setting
    sv_voiceenable
    Default
    1
  • Max player zombies (z_max_player_zombies): Changed z_max_player_zombies

    Vanilla: 0 to 4, default 4. Number of human infected in Versus mode. Vanilla ignores this direct config line; changes require SourceMod with sm_cvar.

    Before

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4

    After

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4
Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Setting Deployed state checked

Left 4 Dead 2: settings

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Changed settings (11)
  • Hostname: Changed HOSTNAME

    Name des Servers in der Serverliste (hostname).

    Before

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    HOSTNAME
    Default
    Left 4 Dead 2 Server
    When it takes effect
    Takes effect after saving and restarting the server.
  • Default Map: Changed SRCDS_MAP

    Startkarte (z.B. c1m1_hotel)

    Before

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    SRCDS_MAP
    Default
    c1m1_hotel
    When it takes effect
    Takes effect after saving and restarting the server.
  • Auto Update: Changed AUTO_UPDATE

    1 = beim Start updaten

    Before

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    AUTO_UPDATE
    Default
    1
    When it takes effect
    Takes effect after saving and restarting the server.
  • Max Players: Changed MAX_PLAYERS

    Maximale Spielerzahl (+maxplayers)

    Before

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.

    After

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.
  • LAN mode (sv_lan): Changed sv_lan

    1 = local network only, not visible or queryable from the internet. Keep 0 on a rented server.

    Before

    Setting
    sv_lan
    Default
    0

    After

    Setting
    sv_lan
    Default
    0
  • Enable cheats (sv_cheats): Changed sv_cheats

    Allows cheat console commands. With 1, Left 4 Dead 2 stops answering server queries: the server disappears from the server browser and the player count stays empty. Joining via connect still works.

    Before

    Setting
    sv_cheats
    Default
    0

    After

    Setting
    sv_cheats
    Default
    0
  • Game mode (mp_gamemode): Changed mp_gamemode

    Co-op, Versus, Survival, Realism, Realism Versus or Scavenge. Vanilla ignores this direct config line. Choose the mode when starting a map, e.g. map c1m1_hotel versus.

    Before

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge

    After

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge
  • Difficulty (z_difficulty): Changed z_difficulty

    Zombie difficulty: Easy/Normal/Hard/Impossible (Expert).

    Before

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible

    After

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible
  • Survivor limit (survivor_limit): Changed survivor_limit

    Vanilla: 1 to 4, default 4. Vanilla ignores this direct config line. Changes require SourceMod with sm_cvar; more than 4 additionally requires a multiplayer plugin.

    Before

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4

    After

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 4
  • Voice chat (sv_voiceenable): Changed sv_voiceenable

    1 = players can talk, 0 = disabled.

    Before

    Setting
    sv_voiceenable
    Default
    1

    After

    Setting
    sv_voiceenable
    Default
    1
  • Max player zombies (z_max_player_zombies): Changed z_max_player_zombies

    Vanilla: 0 to 4, default 4. Number of human infected in Versus mode. Vanilla ignores this direct config line; changes require SourceMod with sm_cvar.

    Before

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4

    After

    Setting
    z_max_player_zombies
    Default
    4
    Range / options
    0 – 4
Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

Interface Deployed state checked

Guided startup parameters

The running panel release contains a change to this tool. Recorded field differences show new, removed or changed settings. The date identifies when the deployed state was checked; existing game and plugin installations are not updated by this interface change.

What the interface looks like

The image shows the interface on its capture date; earlier versions may differ.

Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions.
Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions. · Captured on 2026-10-08
Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions.
Excerpt of the current interface with sample values. Values and prerequisites illustrate the controls; available tools depend on server software, plugins and permissions. · Captured on 2026-10-08

What the settings do

These values come from our guided editors. Defaults are the editor starting values; they do not show the contents of a customer server.

Enable cheats (sv_cheats)

Allows cheat console commands. With 1, Left 4 Dead 2 stops answering server queries: the server disappears from the server browser and from server lists. Joining via connect still works.

Setting
sv_cheats
Default
0
LAN mode (sv_lan)

1 = local network only, not visible or queryable from the internet. Keep 0 on a rented server.

Setting
sv_lan
Default
0
Voice chat (sv_voiceenable)

1 = players can talk, 0 = disabled.

Setting
sv_voiceenable
Default
1
Difficulty (z_difficulty)

Zombie difficulty: Easy/Normal/Hard/Impossible (Expert).

Setting
z_difficulty
Default
Normal
Range / options
Easy, Normal, Hard, Impossible
Survivor limit (survivor_limit)

Vanilla: 1 to 4, default 4. Vanilla ignores this direct config line. Changes require SourceMod with sm_cvar; more than 4 additionally requires a multiplayer plugin.

Setting
survivor_limit
Default
4
Range / options
1 – 4
Max player zombies (z_max_player_zombies)

Vanilla: 0 to 4, default 4. Number of human infected in Versus mode. Vanilla ignores this direct config line; changes require SourceMod with sm_cvar.

Setting
z_max_player_zombies
Default
4
Range / options
0 – 4
Game mode (mp_gamemode)

Co-op, Versus, Survival, Realism, Realism Versus or Scavenge. Vanilla ignores this direct config line. Choose the mode when starting a map, e.g. map c1m1_hotel versus.

Setting
mp_gamemode
Default
coop
Range / options
coop, versus, survival, realism, realismversus, scavenge
Starting map

Map or level loaded when the server starts.

Setting
SRCDS_MAP
Default
c1m1_hotel
When it takes effect
Takes effect after saving and restarting the server.
Max. players

Maximale Spielerzahl (+maxplayers)

Setting
MAX_PLAYERS
Default
8
Range / options
… – 32
When it takes effect
Takes effect after saving and restarting the server.
Auto Update

1 = beim Start updaten

Setting
AUTO_UPDATE
Default
1
When it takes effect
Takes effect after saving and restarting the server.
Server name

Name des Servers in der Serverliste (hostname).

Setting
HOSTNAME
Default
Left 4 Dead 2 Server
When it takes effect
Takes effect after saving and restarting the server.