If you've never played cribbage before, well.....good luck. The game is tricky to learn (see Rules of the Game). It was invented several centuries ago by an English nobleman who probably kept tweaking the rules until he was the only one of his day who could figure them out. The rules have such an odd mix of ways to score points that a beginner is apt to accuse his opponent of making them up as he goes along.
But cribbage grows on you. It's the kind of game that leads grizzled veterans to maintain meticulous records over the years of wins and losses and skunks, dollars won and dollars lost.
For the veteran player, this program provides automatic record-keeping. Not only that, it lets you play duplicate cribbage (see Duplicate Match Play). After all, the reason for record-keeping or playing for money (admit it now) is to see who's better at the game. Duplicate cribbage against a common foe -- the computer -- can help answer that question, or at least give you something new to argue about.
If you are a beginner, you can ignore these extra features and just try your luck against the computer. By default, the program gives you hints on which cards to discard or play and where to place your peg when scoring. It even provides a command button to make card plays and handle scoring automatically. You can disable the button and turn off the hints once you get a feel for the game.