PolyCalculator is a Discord bot that was developed by @jd#0001 to help the community a game called The Battle of Polytopia (+15M downloads). The game has math-heavy mechanics making it hard to predict the outcome of fights.
The community of now (April 2022) over 34k members was relying on a website making the experience heavy-handed by needing apps (the game itself, the calc website and discord).
jd solved this by learning NodeJS and building a Discord bot that takes in the input of player as text in Discord and spitting out the outcome(s) of the fight.
Now having been grated the Verified tag on Discord, the bot boasts of over 310k uses and has used optimization to calculate the best outcome for a fight!
To find the Discord server of the bot, follow this link