The objective of Cribbage is to be the first to score 121 points by creating card-combinations. This is a 2-player game.
The dealer is randomly chosen. Each player gets dealt 6 cards, then discards 2 to the dealer's crib. The top deck card becomes the starter card. If it's a Jack, the dealer gets 2 bonus points.
Take turns playing cards without going over 31. Aces are 1, face cards are 10, and others match the number on them. Playing a card to make exactly 31 gets 2 points. If you can't play without exceeding 31, a new round begins. If neither you nor your opponent can play without exceeding 31, the played cards and count are set aside and a new round begins. If you play the last card, you score a 1-point bonus and end the play.
You earn bonus points for combinations like pairs, runs (3 cards played in sequence), and 15-counts during play. The starter card isn't used here.
You score more points from your hand's combinations after all cards are played. The dealer counts combinations in the crib. Be wise with crib card choices, as the dealer has an advantage.
Scores are pegged: non-dealer, dealer, then crib. The game ends when someone reaches 121 points.