I WW fps

thx for skyrim!

WW1 Source ?

NecroVision

Does it need to be historically accurate or just inspired by WW1? NecroVision & Iron Storm fall into the later category. They can be seen as the Wolfensteins of WW1.

Darkest of Days has few missions set in WW I (and American Civil War, and WW II Nazi German concentration camp and in ancient Pompeii).

There aren't too many older FPS games, because the further you go back, the harder it is for devs seeking any semblance of historicity, to load their games up with fully auto firearms, which, while they of course existed in the early-mid 1900's, weren't really standard issue for the common soldier in any country until closer to the late 60's or early 70's.

e.g. The US's Garand was the standard issue firearm for soldiers in WW2. Semi-automatic, one bullet per trigger pull - or one per mouse click if you will. All WW2 games have them included ofc, but they have ubiquitous fully auto firearms like Tommy guns (more of a special forces type unit historically afaik) and whatnot, which people usually quickly grab and dump the single-shotters asap.

Info: http://www.history-of-american-wars.com/world-war-2-weapons.html

World War 1 would be even more boring for the Bro Shooter enthusiast. Standard issue were still bolt action rifles.
http://www.history-of-american-wars.com/world-war-1-guns.html Although I find it a bit amusing being able to work the action of your bolt rifles in RO2/RS.

WW1 games just look through there

Darkest of Days has WW I segments.