Cribbage Game Room
Play Cribbage Online — Free, Instant, No Account Needed
CribbageBox gives you a complete cribbage game in your browser — no download, no sign-up, no waiting. Click a card to play it, and the game handles all scoring automatically including the trickiest combinations: double runs, flush, nobs, and his heels.
How to Play
Setup
When the game loads, you and the computer each cut a card — lowest cut gets first crib. Then six cards are dealt to each player.
Discard Phase
Select two cards from your six-card hand to send to the crib. The crib belongs to the dealer (you or the computer, alternating each round). The computer discards automatically using EV-based strategy.
Pegging Phase
Players alternate playing cards face-up. Running total must not exceed 31. Score points for:
- Making exactly 15 or 31 (2 points each)
- Pairs, triplets, quads of matching ranks
- Runs of 3 or more consecutive cards
- Last card played in a go sequence (1 point)
Hand Counting
After all cards are played, hands are scored in order: pone (non-dealer) first, then dealer’s hand, then the crib. The starter card counts for all hands.
Winning
First player to reach 121 points wins. Track both scores on the live scoreboard.
What the AI Does
The computer opponent is designed to play correctly at an intermediate level:
| Phase | Computer Strategy |
|---|---|
| Discard | Evaluates all 15 possible keeps, averages hand score across 46 possible starters, adds crib estimate |
| Pegging | Prefers plays that immediately score (15, pair, run, 31), falls back to first legal card |
| Crib awareness | Avoids throwing 5s, pairs, and connected cards to opponent’s crib; favours them in own crib |
Scoring Reference
Need a quick reminder? The game scores all combinations automatically, but understanding why helps you make better discards.
| Combination | Points |
|---|---|
| Each combination summing to 15 | 2 |
| Each pair of same-rank cards | 2 |
| Three of a kind (pair royal) | 6 |
| Four of a kind (double pair royal) | 12 |
| Run of 3 | 3 |
| Run of 4 | 4 |
| Run of 5 | 5 |
| Double run of 3 | 6 |
| Double run of 4 | 8 |
| Flush (4 cards, hand only) | 4 |
| Flush (5 cards) | 5 |
| Nobs (Jack of starter’s suit in hand) | 1 |
| His heels (Jack turned as starter) | 2 |
See the complete cribbage scoring guide for examples of every combination.
Tips to Win More Often Online
Discard Strategy
- Keep fives — a 5 scores a fifteen with any 10-value card (10, J, Q, K), and there are 16 such cards in the deck
- Keep connected cards — sequences like 4-5-6 or 6-7-8 score multiple ways (fifteens, runs, potential double runs)
- Watch who has the crib — when the computer has the crib, avoid throwing 5s, pairs, or cards summing to 5 or 10
- Full breakdown: Cribbage Discard Strategy
Pegging Tips
- Avoid playing a 5 early — your opponent can play any 10-value card for 15
- Play off the count of 21 when you can — your opponent can’t reach 31, giving you more flexibility
- Save low cards for late pegging when the total resets — they keep you in the game longer
- Deep dive: How Pegging Works
Hand Selection
Use the Discard Advisor to evaluate any six-card hand before playing — it ranks all 15 possible keeps by expected value.
Why Play in a Browser?
Browser-based cribbage has real advantages over app-based play:
- No installation — works on any device with a modern browser
- No updates — the game is always current when you open the page
- No storage used — nothing is installed on your device
- Cross-device — switch between desktop and mobile without syncing
- No account data — nothing to log in to, nothing to forget
Practice Between Sessions
Use our free tools to sharpen your game away from the table:
- Hand Calculator — enter any 4-card hand and starter to get the exact score with full breakdown
- Score Calculator — practice counting random hands to build speed and accuracy
- Discard Advisor — rank all 15 keeps from any 6-card deal by expected hand value
- Hand Trainer — pick your keep from random deals and see how close you came to optimal