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Bingo Club: When Math is King

May 20, 2014 — by Mariia Lototska

One word for it is “miraculous” – it’s miraculous how such a team came together in the right place at the right time. “It was as though someone had dropped a bag of scrabble letters, and amongst the resulting alphabetical catastrophe on the floor, one sentence lay there fully formed, ‘Start Company, Make Bingo’,” Oliver Jones, the director and co-founder of Moonfrog Labs recalls as he tells the story of their first game Bingo Club. The game was in made in six months by a team of four that grew to eleven.


A Gamedev Startup – a Crazy Idea for Indian Business

This story is as much about game design as it is about India. Bingo Club and Moonfrog would not exist if Zynga did not open up a shop in India and hire the best talents they could find in all competencies. At the Zynga shop, our team saw the potentials of a fast-moving mobile company in an emerging market, and made the jump into founderhood. It was a bold move! Generally, Indian entrepreneurs like to start traditional buy/sell businesses. As a result, this startup idea of a gamedev company seemed far too risky for some of our family and friends, who asked us to slow down and think twice. We did neither.

Our family and friends asked us to slow down and think twice before starting Moonfrog. We did neither.

We knew that our team’s combination of development skills essential for games is quite rare in this part of the world. In India, it’s tough to find design, product, and game programming professionals able to handle these big 1M+ player bases. It’s also challenging to find creative people who will push for awesome player experiences, and even more difficult to bring all these people together. In the hard times when Bingo Club was finding its feet on the marketplace and players riled about bugs, we would remind ourselves that we could be making a part of history. We could become the first Indian gaming startup to actually execute on both scalability and high quality. It was the idea that kept us polishing and pushing our standards higher.

Math is King in a Bingo Game

The “spit and polish” approach, however, can only be applied to a smooth, solid object. For Bingo Club, this meant some solid, smooth math. Believe it or not, the average number of Bingo balls called in a game dictates absolutely everything else! From session length to level curve, even the cost of power ups could be calculated from that single number. In order to find that number, we had to define a set of rules and simulate bingo games a couple of thousand times. While the company was still inchoate, I quickly realized this fact and knocked together a simple Bingo simulator in Flash, that you can play around with on my website. Simply input the number of players and hit play!

The average number of bingo balls called in a game defines everything. A Flash app had been written for finding it out.

This simulator allows you to define a set of rules, such as player/Bingo ratio, XP per daub, and run it thousands of times. It outputs values such as how many bingo numbers are drawn before a game is over, and even what quantities of XP and coins you would earn per game. These numbers became my constants, my guiding star in the sea of shifting XP requirements and jackpot payouts. Of course later, we started being more creative with our game mechanics and made more sophisticated simulations with no designer-friendly UI.

“These numbers became my constants, my guiding star in the sea of shifting XP requirements and jackpot payouts.”

Casual Means Usable, Not Easy

It may come as unfortunate news for developers and designers that you can’t launch a spreadsheet on the app store. Bingo Club only existed for a while as a glorious mashup of formulas and calculations, while our UI remained a blank canvas. As we started drafting screens, it dawned on us that perhaps we didn’t really know what would resonate with our target audience. Who were the players of Bingo? What semiotics and game patterns are they familiar with?

Each screen was tested, scrutinized in detail, and compared with the closest competitors

To get rid of this problem, we started iterating. Above is a sample of what we greyboxed for the lobby screen before we came up with our final result. Each screen was tested, scrutinized in detail, and compared with our closest competitors. Along the rocky road to a clean interface, we also experimented with meta-games trying bizarre stuff like a Candy Crush Saga-inspired story and zoo animal collection. Along the way, we created hundreds of wireframe configurations.

Lesson Learned: Launch, Adjust, and Update

Despite the fact that we haven’t spent a single marketing dollar over the last few weeks, Bingo Club is naturally climbing its way into the top 100 in various countries, including the USA, UK, Canada, France, Italy, Germany, and Spain. Our reviews are averaging 4.5 stars. The future looks bright! However, we can say that we launched too late! Bingo Club could have been launched three months earlier. But instead of that, we decided to push to become more feature-complete. This was a bad idea, as our app would have become far more polished had we received precious feedback and suggestions from the players sooner.

“Our app would have become far more polished had we received precious feedback and suggestions from the players sooner.”

One could argue that Bingo Club has already completed its mission. It has gone a long way to prove that both Moonfrog and the entire Indian indie game scene is capable of competing against the best developers in the global arena. We saw the bar of quality exhibited in current bingo games, ran, and jumped right over it. You could say that Moonfrog hopped as high as you would expect a frog would on the moon. But our journey was not entirely frictionless, and certainly had no shortage of lessons along the way. Our plan for Bingo Club however, does not end here! With continued support, we intend to see how big our little game can grow. Expect us to add fresh ideas, new levels, and more. For now, its only one small step for Bingo, but one giant leap for Moonfrog.

At the time of writing Bingo Club is available worldwide on Android, but they are still waiting to see whether or not their efforts will be fruitful and rewards, more than intrinsic. Regardless of the outcome, they feel they have proven themselves as a team.


Mariia Lototska