Left 4 Dead 2 (L4D2) , "Auto Bunny Hop" (AutoBhop) refers to scripts or plugins that allow players to jump continuously by holding a single key, typically the spacebar, without needing perfect timing. There is no official "verified" paper, but several methods are widely used and verified by the community across the Steam Workshop and GitHub. 1. Steam Workshop Add-ons (Easiest Method)
These are scripts uploaded by users that can be enabled with a simple subscription and a chat command. Auto Bunnyhop by Cabo
: This popular mod allows you to toggle the feature using the chat command Steam Workshop Auto Bhop by okcf
: Another widely used script that works in most modes. It is enabled by default but can be toggled by typing Steam Workshop Extension-Movement
: A more advanced script that manipulates velocity to mimic bhop mechanics more smoothly. Steam Workshop 2. Manual Configuration ( autoexec.cfg
You can manually enable auto bunny hopping by creating a configuration file. Navigate to your L4D2 directory: Left 4 Dead 2/left4dead2/cfg/ Create a file named autoexec.cfg (or edit the existing one). Add scripts that use the commands or specific movement binds. Steam Community Guide Launch the game and type exec autoexec in the developer console to activate. 3. Server-Side Plugins (Host/Local Server Only)
For those hosting their own servers or playing locally, server-side plugins provide the most stable experience. AlliedModders Plugin : A standard Sourcemod plugin that provides a command for all players on the server. AlliedModders GitHub Plugin : A "plugin-style" script that can be loaded with the launch parameter for local play. Important Considerations : While standard console scripts (
files) and Steam Workshop mods generally do not trigger Valve Anti-Cheat (VAC), using external
injectors is highly discouraged as they carry a significant risk. Steam Community Discussion Compatibility : Some scripts may require you to launch the game with the flag if they are not from the Workshop.
: Even with AutoBhop, you must still perform "strafing" (moving the mouse left and right while holding the corresponding A or D keys) to gain speed. Movement Guide to copy into your autoexec.cfg left 4 dead 2 auto bunny hop verified
The Complete Guide to Left 4 Dead 2 Auto Bunny Hop (Verified)
Bunny hopping (bhopping) is a classic movement technique in Valve's Source engine that allows players to move faster than the standard running speed by continuously jumping and air-strafing. In Left 4 Dead 2 (L4D2), mastering this can be the difference between escaping a Tank or getting pinned by a Hunter. While manual bhopping requires precise timing, auto bunny hop scripts automate the jumping process, letting you focus entirely on your movement and strafing.
This guide explores the most reliable "verified" methods to enable auto-bhop, from server-side plugins to client-side scripts. What is "Verified" Auto Bunny Hop?
In the L4D2 community, "verified" typically refers to scripts or plugins that are widely recognized as safe, functional, and non-malicious. These methods generally fall into three categories:
Steam Workshop Add-ons: Verified by the community through ratings and usage.
SourceMod Plugins: Used on dedicated servers to provide a fair and lag-free bhop experience for all players.
Local Autoexec Scripts: Personal configuration files that use the game's internal console commands. Popular Auto Bunny Hop Methods 1. Steam Workshop: Auto Bunnyhop Add-on
This is the most user-friendly method for local play and host-based servers.
How it works: It replaces your default spacebar bind with a script that triggers the +jump and -jump commands rapidly. Left 4 Dead 2 (L4D2) , "Auto Bunny
Key Feature: It removes the "shaky camera" effect often seen with manual scroll-wheel jumping.
Where to find it: Search for Auto Bunnyhop by Daroot Leafstorm on the Steam Workshop. 2. SourceMod Plugin: Bunnyhop+
For server owners, this plugin offers a "verified" way to enhance movement for all connected players.
Features: Includes a speed multiplier, speed limiter, and a "manual trainer" that uses audio cues to help players learn the rhythm of a perfect jump.
Commands: Players can often toggle it on or off using the chat command !bhop.
Verification: Found on AlliedModders, the primary hub for verified Source engine plugins. 3. The "Insecure" Local Plugin
For those who want a more robust, lag-free experience on their own local servers, a dedicated DLL plugin can be used.
Setup: Requires launching the game with the -insecure launch parameter to load the custom DLL.
Benefits: Provides a "bridge" between client and server to ensure perfectly timed jumps without the jitters. “Verified” means that the cheat has been tested
Source: Often hosted on GitHub (sw1ft747/Server-side-Auto-Bunnyhop). How to Install a Basic Auto-Bhop Script
If you prefer not to use external plugins, you can create a simple autoexec.cfg file:
Navigate to your L4D2 directory: Left 4 Dead 2/left4dead2/cfg/.
Create a new text file named autoexec.cfg (ensure it's not a .txt file).
Paste a community-verified script (like the ones found on GameBanana) into the file.
Launch the game and type exec autoexec in the developer console (~) to activate it. Ethical Use and Competitive Play
While auto-bhop is a blast in Single Player or Co-op, it is important to note: How hard is bunny hopping and how do you do it? : r/l4d2
Here’s a verified, working Auto Bunny Hop (Auto Bhop) script for Left 4 Dead 2, using the game’s built-in console commands and an optional AutoHotkey (AHK) script for mouse wheel simulation.
In cheat/script marketplaces and forums:
This is the most common form of "Verified" b-hopping seen in community servers.
OnPlayerRunCmd function. The code automatically executes a +jump command on the tick the player hits the ground.// Simplified logic for an auto-bhop source mod plugin
public Action OnPlayerRunCmd(int client, int &buttons, float vel[3])
if (IsPlayerAlive(client) && (buttons & IN_JUMP))
if (GetEntityFlags(client) & FL_ONGROUND)
buttons &= ~IN_JUMP; // Force jump on ground tick
return Plugin_Continue;
To understand the function of auto b-hop tools, one must first understand the underlying engine variables that govern movement in L4D2.
Have a project in your mind? Fill up the form below and we will get back to you ASAP.