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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.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Setting Change documented

Left 4 Dead 2: startup parameters changed

The definition of visible startup parameters changed in the panel code. The listed values explain added, changed and removed fields. The date records the definition change; existing server values were not automatically changed by it.

Supported server software: Left 4 Dead 2

Changed settings (4)
  • Auto Update: Added AUTO_UPDATE

    1 = beim Start updaten

    After

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

    Maximale Spielerzahl (+maxplayers)

    After

    Setting
    MAX_PLAYERS
    Default
    8
    Range / options
    … – 32
    When it takes effect
    Takes effect after saving and restarting the server.
  • Game ID: Added SRCDS_APPID

    L4D2 Dedicated Server AppID

    After

    Setting
    SRCDS_APPID
    Default
    222860
    When it takes effect
    Takes effect after saving and restarting the server.
  • Default Map: Added SRCDS_MAP

    Startkarte (z.B. c1m1_hotel)

    After

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

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Server configuration: guided editor added

The guided interface was updated. The history shows added, changed and removed fields with explanations and editor defaults. The date records the documented change, not the historical deployment time.

Changed settings (7)
  • Gamemode (mp_gamemode): Added mp_gamemode

    Game mode: coop (default), versus, survival, realism, scavenge.

    After

    Setting
    mp_gamemode
    Default
    coop
    Range / options
    coop, versus, survival, realism, realismversus, scavenge
  • Survivor limit (survivor_limit): Added survivor_limit

    Max human survivors (default 4; up to 8 with MultiSlots plugin).

    After

    Setting
    survivor_limit
    Default
    4
    Range / options
    1 – 32
  • Enable cheats (sv_cheats): Added sv_cheats

    Allows console commands. Disable on public servers.

    After

    Setting
    sv_cheats
    Default
    0
  • LAN mode (sv_lan): Added sv_lan

    1 = LAN only, 0 = public.

    After

    Setting
    sv_lan
    Default
    0
  • Voice chat (sv_voiceenable): Added sv_voiceenable

    1 = players can talk, 0 = disabled.

    After

    Setting
    sv_voiceenable
    Default
    1
  • Difficulty (z_difficulty): Added z_difficulty

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

    After

    Setting
    z_difficulty
    Default
    Normal
    Range / options
    Easy, Normal, Hard, Impossible
  • Max player zombies (z_max_player_zombies): Added z_max_player_zombies

    How many players can be active as Infected simultaneously (Versus mode).

    After

    Setting
    z_max_player_zombies
    Default
    28
    Range / options
    1 – 64
Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: revised

The guided tools were revised in the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Interface Change documented

Guided startup parameters: added

The guided tools were added to the shared panel code. The entry concerns the interface or its processing. The date records the change; availability on an individual server depends on the game, software, plugins and permissions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Developer announcement Published

Left 4 Dead 2 Free Weekend

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

Game update Published

Left 4 Dead 2 - Update

Announcement from the official source. The source describes the changes; your server installation status is shown separately in the update center.

Effects on plugins

No independent plugin compatibility test is documented for this announcement. Check the affected plugins in the update center before changing game versions.

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 console commands. Disable on public servers.

Setting
sv_cheats
Default
0
LAN mode (sv_lan)

1 = LAN only, 0 = public.

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)

Max human survivors (default 4; up to 8 with MultiSlots plugin).

Setting
survivor_limit
Default
4
Range / options
1 – 32
Max player zombies (z_max_player_zombies)

How many players can be active as Infected simultaneously (Versus mode).

Setting
z_max_player_zombies
Default
28
Range / options
1 – 64
Gamemode (mp_gamemode)

Game mode: coop (default), versus, survival, realism, scavenge.

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

Startkarte (z.B. c1m1_hotel)

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.
Hostname

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.