Select the version labeled "MC 1.12 OF" if you want built-in OptiFine. 2. Run the Wurst Installer
Open the extracted folder and run Wurst Installer.cmd . If you prefer a cross-platform version, you can use the .JAR installer. Download Wurst v6.13 MC1.12 OF
Visit the official Wurst 6.13 update page to download the client. Select the version labeled "MC 1
Seamlessly play on Minecraft 1.12.2 servers using the 1.12 or 1.12 OF versions. Download Wurst v6.13 MC1.12 OF