If you have a friend running a 1.12 server at home, they can tunnel it through playit.gg . This creates a URL (like https://random-name.playit.gg ). You put that URL into your unblocked client’s "Direct Connect." Because the traffic looks like web traffic, the school firewall allows it.
What is the restricted computer running (Windows, ChromeOS, or macOS)?
When looking for unblocked versions, safety should be your top priority. Many malicious websites hide malware behind fake download links. Below are the safest, most reliable methods to play Version 1.12 on a restricted network. 1. Browser-Based HTML5/WebGLEmulators
If using a portable launcher, check the settings to ensure the game is allowed to use at least 2GB of system memory. A Note on Digital Safety and Security