WIKI

Chronobreak // The source of evil

forum post: RaGEZONE
discord: League Underground (please note that this discord server is dedicated to LoL clones/custom-servers in general)
download link: torrent (please help to seed)
download link: magnet (please help to seed)
download link: mega.nz (won’t last forever)

The main difference from its predecessor (apart from the fact that many systems were improved, added or rewritten) was the transition from custom scripts (which had to be written by enthusiasts together with the server) to original scripts (supplied with the game up until version 1.0.0.133).
However, like its predecessor, it uses client version 4.20, so it suffers from a mismatch between the version of scripts used on the server side and the version of resources and configs on the client side. Therefore, only those champions and items that were added before 1.0.0.133 and did not change untill 4.20 work. Anything added or reworked after 1.0.0.132 - doesn’t work.
There is a version that uses the old client, but it has not been released publicly.
An alternative solution would be to port resources from the old client to the new one.

FAQ

How to play X?

• Download the server (Chronobreak) and client (4.20).
• Compile the server.
• Unzip the client.
• Open GameServer/GameServerConsole/bin/Debug/net8.0/Settings/GameInfo.json file in any text editor
• Replace Ashe in "champion": "Ashe", to the desired champion like Udyr
• Save changes and close the file
• Launch the server
• Launch the client

How to enable minions?

• Open GameServer/GameServerConsole/bin/Debug/net8.0/Settings/GameInfo.json file in any text editor
• Replace false in "MINION_SPAWNS_ENABLED": false, to true
• Save changes and close the file

How to Connect to a Private Server Using Hamachi or Radmin?

• Download and Install Hamachi/Radmin

  • Go to LogMeIn Hamachi's website or Radmin's website and download the application.
  • Install Hamachi/Radmin on your computer.

• If You're Hosting (Creating the Hamachi Network and the Game Server)

  1. Create a Hamachi/Radmin Network

     • Open Hamachi/Radmin and log in (or sign up if you don’t have an account).
     • Click “Network” > “Create a new network”.
     • Choose a Network ID (something simple) and set a Password.
     • Share the Network ID and Password with the players who want to join.

     Note: While the creator of the Hamachi network typically hosts the game server for simplicity, anyone in the network can host. The game server host, not the Hamachi network creator, controls the game info and configuration.

  2. Assign Player Info

     • As the host, you are responsible for assigning and configuring the following for each player:

       • Player ID: A unique identifier for the player.
       • Champion: Choose the champion the player will use.
       • Player Name: Assign the player's in-game name.
       • Team: Customize the team the player is on (Blue/Purple).

     • Ensure that all this information is added to the server's GameInfo.json.

     • The location of GameInfo.json is GameServer\GameServerConsole\bin\Debug\net8.0\Settings
     • Make sure you're NOT editing the template file.
     • Download Example GameInfo.json with multiple players
     • Once assigned, share the Player ID with each player so they can include it in their connection line (.bat file).

     Important: As the host, ensure that the server terminal (such as cmd) shows “Game is ready, players can connect” before informing players to run their .bat files. If the terminal shows “All players disconnected”, the server is down, and players will not be able to connect.

  3. Run the Game Server

     • Run without debugging in Visual Studio (or use the ./GameServerConsole command, or run the GameServerConsole.exe). A terminal should pop up, initializing the game server. If autoStartClient is set to true in your GameServerSettings.json, the game should launch automatically (to avoid problems with this, make sure your playerID is 1). Once the terminal shows that the game is ready, you can tell the other players to join by running their .bat files.

     • Optional: use autoStartClient = false in GameServerSettings.json

       Do it if you want to have control over your playerID and autolaunch.
       • Open your GameServerSettings.json file (directory is the same as GameInfo.json) and check the autostart value:
       • If autostart = true: The server will automatically launch the game client with Player ID 1. This is fine if you (the host) intend to play as Player ID 1.
       • If you do not want to use Player ID 1 (or prefer manual control), set autostart = false. Then, you will need to connect to the server manually using a .bat file as a regular player.
     • Important: Always run the server normally (not in debug mode in Visual Studio), because debugging can break multiplayer functionality.

• If You’re Joining a Hamachi/Radmin Network and Game Server

  1. Join the Hamachi/Radmin Network

     • Open Hamachi/Radmin and log in (or sign up if you don’t have an account).
     • Click “Network” > “Join an existing network”.
     • Enter the Network ID and Password provided by the host.

  2. Obtain the Host’s IPv4 Address

     • Once you’ve joined the network, right-click on the host’s name in Hamachi and select “Copy IPv4 Address”.
     • This is the IP address you’ll use to connect to the server.

  3. Create a .bat File to Connect

     • To connect to the server, create a .bat file (batch file) to launch the client in the League-of-Legends-4-20\RADS\solutions\lol_game_client_sln\releases\0.0.1.68\deploy directory.

     • Open Notepad (or any other text editor) and create a new file with the following content (replace <host_ip> and <player_id> as directed below):

       start "" "League of Legends.exe" "" "" "" "<host_ip> 5119 17BLOhi6KZsTtldTsizvHg== <player_id>"

       • Replace <host_ip> with the host’s IPv4 address (copied from Hamachi/Radmin).
       • Replace <player_id> with the Player ID provided to you by the host.

     • Save the file with a .bat extension (e.g., connect_to_server.bat).

     • Ensure the Player ID and Host IP placeholders are replaced with the exact values given by the host.

     Important: Only run the .bat file when the host confirms that the server terminal says “Game is ready, players can connect”. If the server terminal shows “All players disconnected”, the server is offline, and attempting to connect will fail.

• Troubleshooting tips

  Players can't connect even if the server is up

  1. Ping Each Other on Hamachi

     • Right-click another player’s name in Hamachi and select “Ping”.
     • If the ping fails or shows timed-out errors, there’s likely a firewall issue.

  2. Adjust Windows Firewall Settings

     • Open Windows Security > Firewall & Network Protection.
     • Click “Advanced Settings” on the bottom-right.
     • Select Windows defender properties.
     • Check each profile domain (Domain, Private, Public), choose “Protected network connections”, and ensure that Radmin/Hamachi is unchecked for all profiles.
     • Check if inbound or outbound connections are blocked by any domain, and allow them if any of them is blocked.

  3. Check Server Status

     • Ensure the server terminal says “Game is ready, players can connect”. If the terminal says “All players disconnected”, the server is offline. Restart the server and try again.

  It's so laggy!

  The server is unoptimized, and a VPN isn't an efficient way to play multiplayer, so it will lag. However, there are options:

  • Try a VPS (costs money)
  • Try port forwarding (it can cost money, depends on the provider)

How to play with bots?

Although it is technically possible to convert and use bot behavior trees leaked with version 1.0.0.142 of the game client, as of 12/20/2024 only Garen is publicly available and he is pretty useless scince and currently he is pretty useless, because he was reworked and his skills don't work properly.

Running the server

Prerequisites

Install .NET 8 or newer

Manual Setup (Windows)

If you have Microsoft Visual Studio 2019 or newer (Community Edition is fine too) installed, then open the GameServer Solution in VS, build and run GameServerConsole project.

Manual Setup (Linux)

# Build:
cd GameServer/GameServerConsole
dotnet build .
# Run:
cd GameServerConsole/bin/Debug/net8.0
./GameServerConsole
# Build & Run:
cd GameServer/GameServerConsole
dotnet run .

League of Legends 4.20 game client

download link: torrent (please help to seed)
download link: magnet (please help to seed)
download link: mega.nz (won’t last forever)

Running the game client

Prerequisites

Download and unpack the 4.20 version of League game client.

Manually Launching from command line (Windows)

• Go to the deploy folder
• Double-click to run run.bat

or

• Go to the deploy folder
• Create new text file
• Put start "" "League of Legends.exe" "" "" "" "127.0.0.1 5119 17BLOhi6KZsTtldTsizvHg== 1" in it.
• Rename it to something like run.bat
• Double-click to run run.bat

Manually Launching from command line (Linux)

• Install wine and winetricks using your package manager.
• Run winetricks d3dx9 - without this you will get into the game, but your screen will be black.
• Enter the directory containing the client and run the game:

cd /path/to/your/League-of-Legends-4-20/RADS/solutions/lol_game_client_sln/releases/0.0.1.68/deploy
wine "./League of Legends.exe" "" "" "" "127.0.0.1 5119 17BLOhi6KZsTtldTsizvHg== 1"

Automatic launch from Visual Studio or GameServerConsole.exe

• Open GameServer\GameServerConsole\bin\Debug\net8.0\Settings\GameServerSettings.json in any text editor
• Replace false in "autoStartClient": false to true
• Set the path to your League of Legends' deploy folder (Path\To\Your\League420\RADS\solutions\lol_game_client_sln\releases\0.0.1.68\deploy), which shown by the example already in the file. Don't forget to replace all backslashes (\) with double backslashes (\\), i.e. in the end you should end up with somethig like "clientLocation": "C:\\Users\\User\\Downloads\\League-of-Legends-4-20\\RADS\\solutions\\lol_game_client_sln\\releases\\0.0.1.68\\deploy"
• Save changes and close the file

Useful links

It may be a good idea to save their contents to preserve.

Old clients with debug data to reverse engineer:
archive.org/league-of-legends-0.9.22.14-beta
archive.org/LOL-1.0.0.106
archive.org/LOL-1.0.0.126

1.0.0.131 client (solution 0.0.0.64):
download link: torrent (please help to seed)
download link: magnet (please help to seed)
download link: mega.nz (won’t last forever)

1.0.0.131 up to 1.0.0.132 client (solution 0.0.0.70) patch:
The last patch before the scripts were removed from the client
download link: torrent (please help to seed)
download link: magnet (please help to seed)
download link: mega.nz (won’t last forever)

L4S launcher by Faye (source code + assets only):
download link: torrent (please help to seed)
download link: magnet (please help to seed)
download link: mega.nz (won’t last forever)

Chronoshift // Don’t even ask about it

Better check out the new old school MOBA from the same developers:
Syndicate of Souls Site Steam

League of Jinx

repo: GitHub

League of Legends 1.0.0.132 clone in Godot.
Early stage of development. Contributors wanted.

Fishbones

repo: GitHub
downloads: GitHub

Text-based Chronobreak downloader, installer and launcher.
Uses torrents to download files and find other players.
Early stage of development. Contributors wanted.