That’s really cool that you’re using a giving game at Altruist. My expertise is in collective decision making. You may find this article I did awhile back on giving games useful: https://medium.com/@aaronhamlin/let-the-giving-games-begin-d19a5ad91570
It would also be cool to see short narratives on why people selected the charities that they did. Nice work, and keep it up!