Unfortunately, hexdd.wad is not a standard or well-known WAD file for classic Doom/Hexen engines.
Compatibility: It functions as an IWAD but requires the original HEXEN.WAD to be present to run. How to Upgrade hexdd.wad v1.1
If you shatter a wall or stained-glass window in one map to uncover a secret, it remains destroyed when you return from another level. Resource Drainage: Unfortunately, hexdd
Improved handling of the Redbook audio tracks, ensuring the atmospheric soundtrack looped correctly. Bug Fixes: hexdd.wad v1.1