Memoir'44 is a boardgame/wargame published since 2004 by Days of Wonders and created by Richard Borg that allows players to recreate key battles of World War II.
The base game can be taught in minutes but with dozens of expansions, hundreds of additional rules and several hundred scenarios it can be confusing to find all of the information while playing.
This free (and ad free) site is using fair use to offer a free database of everything you need to know, all while trying not to violate the Days of Wonders copyrights.
Image by Marind [CC BY-SA 3.0], from Wikimedia Commons
