xtrojka-1.2.3-4 RPM includes /var/lib/games/xtrojka.score, but xtrojka looks for scores at /var/lib/games/xtrojka.scores (note an extra s at the end), so it does not keep any scores
Fixed in xtrojka-1.2.3-7.
*** Bug 3414 has been marked as a duplicate of this bug. *** xtrojka-1.2.3-6 includes a file /var/lib/games/xtrojka.score; it's apparently supposed to be .scores. When I ran xtrojka, it spat out a warning "can't stat /var/lib/games/xtrojka.scores", over and over again. I renamed the file from .score to .scores and it was fine.