I never really got any joy from playing Warfare 1917 so I'd have to go with Meatboy 2 even though getting the band-aids are so frustrating (and I mean all)...
To firetail_madness:first off ww2 didnt start until 1939...and thats all i have to say didnt read post after so if someone already corrected him than srry.Back on topic:Warfare 1917 tottaly...needs to be longer tho...and i would enjoy a sequel like adding diseases if ur troops stay in trench long like "Trench Foot" and "Cat Rats" eye view report rats the size of house cats....