Also Googled and found, thanks to TJjokerR on steamcommunity forums, that the list is in "main_out.js" in the source code.
Alphabetical order: 2ch.hk, 4chan, 8ch, 9gag, argentina, australia, austria, ayy lmao, bait, bangladesh, belarus, belgium, bosnia, botswana, brazil, bulgaria, byzantium, cambodia, canada, chile, china, cia, confederate, croatia, denmark, doge, ea, earth, estonia, european union, facepunch, feminism, finland, france, german empire, germany, greece, hitler, hong kong, hungary, imperial japan, india, indiana, indonesia, iran, iraq, ireland, isis, italy, jamaica, japan, kc, kingdom of france, latvia, lithuania, luxembourg, maldivas, mars, matriarchy, mexico, moon, nasa, nazi, netherlands, nigeria, north korea, norway, origin, pakistan, patriarchy, peru, pewdiepie, piccolo, pokerface, poland, portugal, prodota, prussia, qing dynasty, quebec, reddit, romania, russia, sanik, satanist, scotland, sealand, sir, somalia, south korea, spain, stalin, steam, stussy, sweden, switzerland, taiwan, texas, thailand, tsarist russia, tumblr, turkey, ukraine, united kingdom, usa, ussr, vinesauce, wojak, yaranaika
Order in which skins were added: poland, usa, china, russia, canada, australia, spain, brazil, germany, ukraine, france, sweden, hitler, north korea, south korea, japan, united kingdom, earth, greece, latvia, lithuania, estonia, finland, norway, cia, maldivas, austria, nigeria, reddit, yaranaika, confederate, 9gag, indiana, 4chan, italy, ussr, pewdiepie, bulgaria, tumblr, 2ch.hk, hong kong, portugal, jamaica, german empire, mexico, sanik, switzerland, croatia, chile, indonesia, bangladesh, thailand, iran, iraq, peru, moon, botswana, bosnia, netherlands, european union, taiwan, pakistan, hungary, satanist, qing dynasty, nazi, matriarchy, patriarchy, feminism, ireland, texas, facepunch, prodota, cambodia, steam, piccolo, ea, india, kc, denmark, quebec, ayy lmao, sealand, bait, tsarist russia, origin, vinesauce, stalin, belgium, luxembourg, stussy, prussia, 8ch, argentina, scotland, sir, romania, belarus, wojak, isis, doge, nasa, byzantium, imperial japan, kingdom of france, somalia, turkey, mars, pokerface
P.S. This game is going to be huge!
Also Googled and found, thanks to TJjokerR on steamcommunity forums, that the list is in "main_out.js" in the source code.
Alphabetical order: 2ch.hk, 4chan, 8ch, 9gag, argentina, australia, austria, ayy lmao, bait, bangladesh, belarus, belgium, bosnia, botswana, brazil, bulgaria, byzantium, cambodia, canada, chile, china, cia, confederate, croatia, denmark, doge, ea, earth, estonia, european union, facepunch, feminism, finland, france, german empire, germany, greece, hitler, hong kong, hungary, imperial japan, india, indiana, indonesia, iran, iraq, ireland, isis, italy, jamaica, japan, kc, kingdom of france, latvia, lithuania, luxembourg, maldivas, mars, matriarchy, mexico, moon, nasa, nazi, netherlands, nigeria, north korea, norway, origin, pakistan, patriarchy, peru, pewdiepie, piccolo, pokerface, poland, portugal, prodota, prussia, qing dynasty, quebec, reddit, romania, russia, sanik, satanist, scotland, sealand, sir, somalia, south korea, spain, stalin, steam, stussy, sweden, switzerland, taiwan, texas, thailand, tsarist russia, tumblr, turkey, ukraine, united kingdom, usa, ussr, vinesauce, wojak, yaranaika
Order in which skins were added: poland, usa, china, russia, canada, australia, spain, brazil, germany, ukraine, france, sweden, hitler, north korea, south korea, japan, united kingdom, earth, greece, latvia, lithuania, estonia, finland, norway, cia, maldivas, austria, nigeria, reddit, yaranaika, confederate, 9gag, indiana, 4chan, italy, ussr, pewdiepie, bulgaria, tumblr, 2ch.hk, hong kong, portugal, jamaica, german empire, mexico, sanik, switzerland, croatia, chile, indonesia, bangladesh, thailand, iran, iraq, peru, moon, botswana, bosnia, netherlands, european union, taiwan, pakistan, hungary, satanist, qing dynasty, nazi, matriarchy, patriarchy, feminism, ireland, texas, facepunch, prodota, cambodia, steam, piccolo, ea, india, kc, denmark, quebec, ayy lmao, sealand, bait, tsarist russia, origin, vinesauce, stalin, belgium, luxembourg, stussy, prussia, 8ch, argentina, scotland, sir, romania, belarus, wojak, isis, doge, nasa, byzantium, imperial japan, kingdom of france, somalia, turkey, mars, pokerface
P.S. This game is going to be huge!