I Manged to finally find and read "Pierwsza Brygada," a Polish adventure comic following Pilsudski's adventures prior to becoming a statesman. Multiple characters from Polish literature and history make appearance or are referenced. It is somewhat similar to League of Extraordinary Gentlemen, but more pulpy, lighthearted, and without Moore's edginess. It has some scifi-ish tech, like air tanks, cars with tons of gadgets, and super soldiers. Authors advertised it as steampunk, but it is mostly dieselpunk, or at least its early stages.
"Pierwsza Brygada" story is standalone, but "Pierwsza Brygada," loosely continues Polish webcomic "Nowe Przygody Stasia i Nel." It itself was a continuation of Polish adventure book from early 20th century titled "In Desert and Wilderness" in English. Webcomic had a lot of effort put into it. Page was stylized to look like early 20th century newspaper, and comic was accompanied by articles written in period appropriate style. The site is defunct now, and sadly there were no news of "Pierwsza Brygada"'s continuation for ten years now.
Still, a good read if you know Polish or other Slav languages well enough. I've been thinking of scanlating it, but the book ends on a bit of a cliffhanger and requires a lot of cultural and historical knowledge to get the most out of it.