i've been thinking about this thread and there are so many games i could list. i'll just offer a few that stand out to me.
first, ones i was fortunate to attend
June 1994 -- Lou's grand slam to win the game
September 2003 -- Tigers avoid infamy by beating the twins
October 2006 -- first playoff game at Comerica Park
October 2006 -- Magglio's homer game
October 2012 -- Miggy K's to end the world series
September 2014 -- Tigers clinch the central
i have a practice of going to the last home game of the year whenever possible. i've seen some cool stuff. the Tigers clinch, other teams clinch, the Tigers dither away a division
on tv, game 163 from 2009, game 5 of the 2011 division series, and game 5 of the seattle series last year stand out to me.