The best online board game!

We launched nummi in 2012, and since then we've been working on improving and optimizing it on a regular basis. Nummi is a Rummy game in which the player must be the first to clear their board against a maximum of 3 opponents.

nummi is an app to play an old-fashioned game of Rummy online against your family and friends.

Client and context

As our very first project, we developed nummi on our own initiative. We saw a gap in the market when Wordfeud came along with their digital Scrabble. At that point, we started thinking about what other digital version of a board game we could make.

We are not a fan of word games ourselves, but prefer to deal with numbers. That is how we came up with the idea for nummi. Since its launch in 2012, more than half a million users have started playing the game. Since then we have been working on improving and optimizing the game and user experience.

Functionalities

Play Rummy online whenever you want

It's possible to play up to 20 games at the same time. This means there's always someone who just played a move when you feel like playing Nummi.

Easily invite friends and family

It's really easy to invite friends and family to also play nummi. Simply send a link through social media or a chat app and they can start playing against you.

Multiple games against multiple opponents

It's possible to play up to 20 games at the same time. With up to 4 players playing a game of Nummi will never have a dull moment!

Alternative ways to log in

Besides email address and password, Facebook, Google and Apple are offered as alternative ways to log into the Nummi app. This allows for an easy login, making you ready to play in no time.

Chat with your opponents

Nummi is played against 1 to 3 opponents. What's more fun than chatting with the people you're up against? Challenge your opponent to play a joker or motivate them to play faster.

What has been developed?

API

Many users and a lot of notifications

Nummi is played by a lot of users. The communication between server and client must be as smooth and fast as possible to facilitate the amount of players. This means that constant optimizations are needed. Next to this, notifications are sent to let the users know it's their turn or when a game is about to expire. These notifications are all placed in a queue, so they can be sent without overloading the server.

iOS & Android app

Support for smartphones and tablets

More often than not mobile games are played on a tablet. This is why nummi is playable on both smartphones and tablets. To replicate the feeling of the original game the playing area can be freely arranged by users. This however, causes issues in how the board is rendered. We chose to optimise the board to work with the best ratio for tablets. This results in only a smaller portion of the board being visible to smartphone users. To solve this problem users can freely scroll and zoom through the board.

Relevant news messages

nummi — November 7, 2019

Nummi update: makkelijker vrienden uitnodigen

Afgelopen tijd hebben we hard gewerkt aan onze eigen app nummi. Voor de dagelijks 12.000 actieve gebruikers hebben we enkele features toegevoegd. Eén van die features is het delen van dynamic links!