Looking for logging into the Phpbb3 With Steam Account site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Phpbb3 With Steam Account site. After that you can login as usual with your login credentials.
https://www.phpbb.com/community/viewtopic.php?t=2455476
https://docs.oneall.com/plugins/guide/social-login-phpbb/3.1/
https://support.oneall.com/forums/discussion/4553/how-to-authenticate-with-steam-id-and-then-allow-user-to-create-username-specific-to-phpbb-install
https://www.overclock.net/forum/143-web-coding/1355337-integrating-openid-login-my-phpbb-forums-steam-login.html
https://github.com/stevotvr/phpbb-steamstatus
https://github.com/oneall/social-login-phpbb
https://forums.steamrep.com/threads/steam-openid-question-sign-in-through-steam.29548/
https://sourceforge.net/projects/accountlinksmod/
https://steamcommunity.com/app/334230/discussions/0/1290691937706836943/
https://steamcommunity.com/app/334230/discussions/0/615085406669517428/?ctp=1
https://store.steampowered.com/join/completesignup
http://www.phpbb3bbcodes.com/viewtopic.php?t=992
https://forums.factorio.com/viewtopic.php?f=55&t=29416