The file is a compressed archive likely containing ROMs (Read-Only Memory files) or a complete collection of the classic 1984 arcade and home computer game Boulder Dash . This guide covers how to access the file and the basics of gameplay. 1. Opening the .7z File

: Use the Unzip or iZip apps to share and extract the file within the "Files" app. 2. Running the Game

: Download and install 7-Zip or WinZip . Right-click the file and select 7-Zip > Extract Here . macOS : Use the Unarchiver or Keka from the App Store.

Because Windows, macOS, and mobile devices do not have built-in support for the .7z format, you must use a third-party unarchiving tool.