If you must view the contents, open the archive inside a virtual machine (VM) or a dedicated "sandbox" environment to prevent any potential scripts from affecting your primary operating system.

Upload the file to VirusTotal to check it against over 70 different antivirus engines.

Before attempting to open or interact with the file, follow these industry-standard precautions:

Confirm the identity of the sender or the reputation of the hosting website. If the source is unknown, do not extract the files .

It may be a collection of assets for a tabletop RPG, a video game mod (e.g., for Hearts of Iron or Fallout ), or a digital art compilation depicting post-apocalyptic themes.

Once opened in a safe environment, look for executable extensions like .exe , .bat , or .vbs disguised as documents.

If you received this file via an unsolicited email or downloaded it from an unverified source, it is highly likely to be malware (such as ransomware or a credential stealer). Attackers often use evocative names like "World after War" to entice clicks.

on where this file came from or what you expect it to contain? This will help me give you a more specific breakdown of its likely contents.