Project website along with more specifications can be found from: https://leaguesandbox.github.io/
Project chat on Discord: https://discord.gg/Bz3znAM

Take a look at this

• Install Microsoft Visual Studio 2017 or newer (Community Edition is fine)
• Install latest .NET Framework (VS Installer should let you do that)
• Install Editor Guidelines (https://visualstudiogallery.msdn.microsoft.com/da227a0b-0e31-4a11-8f6b-3a149cf2e459)
  • This is strongly encouraged to follow the 120 character limit per line guideline

• Download and run League Sandbox Auto Setup [Mirror] [Source]

• Download the 4.20 version of League client (https://mega.nz/#!hpkiQK5A!pFkZJtxCMQktJf4umplAdPC_Fukt0xgMfO7g3bGp1Io)
• Clone the git repository and run git submodule update --init --recursive to download the necessary contents package
• Copy GameServer/Settings/GameInfo.json.template to GameServer/Settings/GameInfo.json
• Modify the file copied in the last step as required
• Build and run

Click the debug button.

Auto run settings are located in Settings/GameServerSettings.json.

start "" "Path/To/Your/League420/RADS/solutions/lol_game_client_sln/releases/0.0.1.68/deploy/League of Legends.exe" "8394" "LoLLauncher.exe" "" "127.0.0.1 5119 17BLOhi6KZsTtldTsizvHg== 1"

This repository is under the AGPL-3.0 license. This essentially means that all changes that are made on top of this repository are required to be made public, regardless of where the code is being ran.