Conflict simulation, peacebuilding, and development

“Flattening the Curve” matrix game report


Tim Price has been kind enough to pass on this report from a recent play of the Flattening the Curve matrix game.


Last night I managed to get 11 volunteers together to play a distributed version of the Flattening the Curve matrix game over Zoom. It was an interesting and frustrating experience, but I thought it might be worthwhile sharing it with you.


We used Zoom for the video chat. We felt it was very important to be able to speak and see each other and Zoom has a simple and intuitive mosaic screen setup that is particularly useful for the Facilitator. The surround to the image is highlighted to show the current speaker, interrupters are shown with a highlighted line under them, and their names appear under their faces (really very useful indeed). Of particular interest for running a Matrix Game, it is possible to sent private messages to named individuals using the chat function in the application. It was also stable for the 3hrs we played.

We used Google Slides for the game map (see here). With the map itself as the background image and a number of counters imported as images onto the map (and left outside the slide boundary), so everyone could see and collaboratively move the counters if necessary. It is useful to duplicate the last slide for every turn, so you have a record of the map after each turn, and that also allows a run through at the end as an After Action Review.

Finally, we used Mentimeter  to be able to carry out the “Estimative Probability” method of adjudication.FTC1.png

When using Estimative Probability players or teams are asked to assess the chances of success of an argument, and these are aggregated to reveal the “Crowd Sourced” chance of success. In analytical games, this provides potentially valuable insight into how participants rate the chances of a particular course of action. Following discussion, players select the option on the Mentimeter slide which, in their view, best represents the probability of the argument’s success. These are displayed immediately to the Facilitator, but not to the players, so it is using hidden voting. It is generally felt that this is a more accurate method to leverage the work on Crowd Sourcing, as well as making the resulting probability more accessible and acceptable to the participants. The terms on the slide also reflected those commonly used in the intelligence community.

The advantage with Mentimeter over other poll and voting systems is that it is free, feedback is instant, and you can use a single slide for all the Matrix Arguments, because you can re-set the results each time. Of course, if you want to have a record of the results, you will have to buy the upgraded version, or save a screenshot each turn (which is a pain).

Running the Game

As is normally the case with video conferences, we had the usual difficulties getting everyone onto the Zoom, with sensible names displayed instead of “Owner’s iPad”, so the start was a little delayed. I had put out a Loom video with a short introduction about Matrix Games, but inevitably a few of the players hadn’t been able to view it, so we were delayed starting as I had to explain how the game would play.

As the game went on, I modified the map (based on some helpful collaboration with TNO in the Netherlands), to make it easier to follow. The revised map is here:


The game played perfectly well, but at a slower pace that if it had been face to face, and it was certainly more tiring for me as the Facilitator. The inter-turn negotiation between team members and other teams was carried out using Whatsapp:  and Whatsapp Web so was private to the other players.


We were time limited and were only able to have 11 participants in the end – but it was mainly a trial to see if running a Matrix Game remotely is at all possible. We got a few insights from the game, one of which I will share – as we all go into working from home full-time and are switching to remote working, we end up downloading all sorts of software and applications that we would never have normally dealt with. This increases the threat surface for cyber-attacks by an order of magnitude, so correct digital hygiene is going to be as important as washing your hands.

Post-Game Predictions

Following the game, we quickly did a couple of polls, hopefully better informed by the experience of the game:

  • Each participant was asked to give me their MOST IMPORTANT thing that would happen over the next month (please note the definition of “thing” was left deliberately vague so the players could decide for themselves what it meant).
  • They were then asked to vote on which of these was the MOST LIKELY thing to happen.


  • Next, each participant was asked to give me their MOST IMPORTANT long-term consequence of Coronavirus.
  • They were then asked to vote on which of these was the MOST LIKELY thing to happen.



It is possible to run a Matrix Game remotely, but it is very tiring for the Facilitator and takes much longer than you thought it would.

The right choice of technology can make a real difference – so mandated standards and corporate choices may well have an impact on the experience. This means that practicing, as I was, while waiting for the corporate roll out of their platform of choice might end up especially frustrating, when I am unable to do something that I know a free app on the internet will let me. But downloading all those free apps and trying them out could be dangerous, because the bad guys are definitely out to get you…

For more resources on the pandemic, see our COVID-19 serious gaming resources page.

3 responses to ““Flattening the Curve” matrix game report

  1. Rex Brynen 17/04/2020 at 1:37 pm

    The graph is clearer in the game materials:

  2. Krenn 17/04/2020 at 6:17 am

    I can’t read the column labels on the second graph?

  3. Brian Phillips 07/04/2020 at 11:22 am

    Thanks for posting … this was very helpful.


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