This First World War board game popped up in my FB feed...at least a few of you will be interested...I know it made me all GIGGITY.
Looks like there is an option to play solo as well. Great Britain, France, Germany and Austria-Hungary are the playable nations. U.S. troops appear in the 'legacy' campaign.
Forts and fortresses, as well as armor, artillery, aircraft and heavy infantry with machine guns are also represented!
https://www.kickstarter.com/projects/trench-club/trench-club-legacy?ref=cvgi96
Alternative histories also available:
(https://ksr-ugc.imgix.net/assets/038/618/965/43486b62e971747721ff1b6ea4fe99e0_original.jpg?ixlib=rb-4.0.2&w=680&fit=max&v=1663414987&gif-q=50&q=92&s=0cf0cecb1c8640c66b8d4b5f008b1139)