Backgammon NJ for Android icon

Backgammon NJ for Android v4.8

• In-app purchases

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About this app

Developer Description

Play & learn backgammon at skill levels ranging from beginner to world-class!

● Versatile -- Play offline vs. computer or against a friend in 2-player mode
● Customizable -- More options than any other backgammon app

Play & learn backgammon at skill levels ranging from beginner to world-class! This app is designed for both Android phones & tablets.

Backgammon NJ for Android is a full-featured game which uses an advanced, neural network-based, artificial intelligence. Play against a computer AI or against another person in 2-player mode on one device. Using Tutor Mode & Hints, Backgammon NJ for Android can show you how to improve your game!

Discriminating players will appreciate how well the AI plays. It uses a neural network trained on millions of positions, a bearoff database, & a match equity table to achieve strong gameplay that will challenge even expert players.

IS THIS GAME RIGHT FOR YOU?
This game is best for people:
• Who recognize the strength of neural network backgammon bots
• Who want to improve their game by playing against a world-class level AI
• Who are willing to use in-depth, technical features included in the game to prove that it is honest (https://www.njsoftware.com/note.html)
• Who won't expect to win consistently on the higher skill levels

FEATURES
• Neural network-based AI
• 2 game types: Standard or Nackgammon
• 4 skill levels: Easy, Medium, Hard, Expert
• Mersenne Twister algorithm for random number generation
• Doubling cube
• Single games or match play up to 25 pts
• Crawford rule for match play
• 1-player mode vs. computer
• 2-player mode on one device
• User-friendly, tap-to-move interface
• Highlighted checker movement options
• Hint & Undo
• Learn with Status Meter & Tutor Mode
• Game & dice stats, including Elo rating & ER
• Match info: GnuBG ID, win chances, equity, top 10 moves, & cube decisions
• Email match files
• Practice mode with unlimited undo (1-player vs. computer)
• Manual match recording mode with unlimited undo & speed mode option
• Options to reverse board direction, resign, use one-tap moves, auto bearoff, auto finish, use Jacoby rule, & much more
• Match analysis (in-app purchase): Analyze past match files, view moves & errors for match, step through match, jump to position, play from position, save match files permanently

IMPORTANT
If you're having issues:
• Make sure a task killer isn't killing BGNJ processes.
• Run BGNJ from main memory, not from memory card.
• We can't respond to crash reports submitted through Android OS. Contact us directly: https://contact.njsoftware.com

What's New

v4.8:
- Updated for latest Android API level

In-app purchases

$2.99 per item

Version Information

Version
4.8
Downloads
10K+
Updated on
Sep 1, 2024
Released
Nov 13, 2011
Requires
Android 7.1

Statistics

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Backgammon NJ for Android - Google Play Rankings

No ranking data available yet. Rankings are updated daily.

#70 in Top Paid Board in United States

#20 in Top Paid Board in Australia

#21 in Top Paid Board in United Kingdom

#50 in Top Paid Board in India

#49 Abalone® Abalone®
#50 Backgammon NJ for Android Backgammon NJ for Android
#51 Neuroshima Hex Neuroshima Hex

Backgammon NJ for Android users say on Google Play

★★★★★
Arthur Marshall Arthur Marshall

Still the only backgammon game on android worth playing. Admittedly hit my peak on the medium level, would be nice to have another level between that and hard to give me a chance... Excellent support, too.

7 Sep 11, 2024
★★★★
Barnsley Chop Barnsley Chop

Just such a good way to pass the time. I started out as a real beginner but now hold my own around 1600. I should really take advantage of all the features, including online playing. 4 years on. Still love this app. Only gripe is I wish it was easy - and I mean a click of a button easy - to replay the last game (or replay and switch sides). Keep up the good work!

10 Sep 28, 2024
★★★
Rod H Rod H

probs the 2nd or 3rd best BG app after XG gammon. not a great UI, not nice colors offered. XG has better interface and engine. worse, is this app just gets ridiculous rolls all the time. when you play it all day every day.... you notice. no matter what the developer says about rolls. try it and you see and you'll be frustrated just like all of us. can't wait for XG to come back, which it is.

6 Dec 27, 2025
★★
Glenn Zorpette Glenn Zorpette

I have noticed, statistically, that around the time I start bearing off, my probability of rolling 1-2 or 1-1 goes to near 100%. Meanwhile, the computer's probability of rolling 1-2 or 1-1 plunges, as far as I can calculate (after hundreds of games). In addition, probabilities of rolling doubles seem to be very, very high for the computer early on in the game--when doubles are extremely advantageous. Yours, not so much. You will tire quickly of this insulting nonsense.

31 Jan 22, 2025
Ivan Jekov Ivan Jekov

Doubles Delirium - Backgammon Edition! Outrageous. If you play long enough, you'll eventually witness the absurdities.

25 Jun 7, 2024

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