- Open your Steam Library
- Right click on War for the Overworld Bedrock Beta and go to 'Properties'
- Go to the 'Betas' tab and type in alongtimeago
- Click 'Check Code' (do not hit enter)
- Select 'timemachine - Bedrock Beta v0.1.0' from the dropdown box
- Restart your Steam client or go to the 'Local Files' tab and click 'Verify Integrity of Game Cache' to force the game to patch
- Don't forget to switch back to 'NONE - Opt out of all beta programs' when you are done!