The current maintainers for gnome-games are:

Thomas H.P. Andersen <phomes@gmail.com>
Jason Clinton <me@jasonclinton.com>

Past maintainers of gnome-games:
Callum McKenzie <callum@spooky-possum.org> (versions 2.3 to 2.16)
Andreas Røsdal <andreasr@gnome.org>  (versions 2.16 to 2.19)

If blackjack breaks you should probably talk to:
William Jon McCann  <mccann@jhu.edu>

