Here is the full list of all 31 Governor of Poker 3 achievements.
Reach level 50
Win 2000 hands in any poker game type
Reach level 40
Win a hand with a straight flush
Win 1000 hands in any poker game type
Reach level 30
Win 500 hands in any poker game type
Unlock 15 saloons
Win a hand with four of a kind
Win a badge in any sit n go tournament
Reach level 20
Unlock 10 saloons
Win a hand with a flush
Win 100 hands in any poker game type
Do a rebuy in any poker game
Win a hand with fullhouse
Unlock 5 saloons
Win 50 hands in any poker game type
Reach level 10
Win a hand with a straight
Win a hand with three of a kind
Play a sit n go poker game
Win a hand with two pair
Win 10 hands in any poker game type
Reach level 3
Win a hand with a highcard
Win 5000 hands in any poker game type
Win 10000 hands in any poker game type
Win 50000 hands in any poker game type
Reach level 60
Win a hand with a royal flush