A lot of poker game tournaments have been announced on this board over time, and am I kind of wondering what makes poker games so inclined to the tournament and we don't see such competitions being announced for other games?
Poker games are games that have more appeal to people, so they hold the event, it can be said that poker games have become very common things that many people know. As for other games, they are less attractive, so I don't think they hold events for other games.
One thing that the casino aim from tournaments is their own promotion and publicity, As you said that poker has more appeal to people and many gamblers know how to play it or at least the basic of poker that's why everyone can relate. A casino won't launch a tournament that only few people know or participate in because they will get less traffic from it compared in launching a poker tournament.