Files with otr file extension are related to the Over the Reich saved game data.
There is one other file type using
the OTR file extension!
.otr - IRIX complied FTR data
OTR file extension - Over the Reich saved game
What is otr file? How to open otr files?
File type specification:
The otr file extension is associated with the Over the Reich, a turn-based strategic computer game from World War 2, developed for Windows and Mac, released in 1996.
The otr file contains saved player's progress in the game.
This otr file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.