- Core War
rec.games.corewar is a Usenet group that was proposed by Mark Durham and formed in 1991 to discuss Core War and related games for recreational programmers.
KOTH.org has the COREWAR-L mailing list to echo rec.games.corewar. To subscribe to COREWAR-L send an email to firstname.lastname@example.org containing subscribe corewar-l <yourname>.
#COREWARS is a freenode IRC channel created by John K Wilkinson in May 2009. The channel is not currently logged, but old logs are still available.
irc.KOTH.org previously hosted an IRC channel from November 1999 until May 2016. IRC logs are available.
- #COREWARS IRC logs (2005–2016)
Core War also has a forum and a presence on social media.
- corewar.eu forum active since September 2013
- @xcorewar and the #corewar hashtag on twitter
- Core War community on Google+
The 20th Anniversary of Corewar Meeting was organised in Berlin by Christian Schmidt, on 23–25 July 2004.