In shedding-type games, the player's objective is to empty one's hand of all cards or tiles before all other players.
Games with action/power/trick cards
In these games, players win by having the fewest points.
Progressively add rules
One suit per player
One deck per pair
Players play in pairs, shed sets of cards for points and win by reaching a certain point value.
Different trump suit per player
Bluffing
Asian games
Proprietary
Miscellaneous