FragBank

play money Day 1

Your accounts

Current –
Savings (1% a night)–
Fund–
Net worth–

Life events

    Payments

    Payments to other players arrive at close of day. You can cancel one until then.

    FragFund

    Price – / unitYou hold – units1% fee each way

    Bank health

    Money in circulation vs issued₣0.00
    Money that appeared from nowhere₣0.00
    Money that vanished₣0.00
    Payments in transit: owed vs held₣0.00
    Fund cash –Fees collected –

    News

    Bank news and your own activity. Other customers' activity is private; the full log opens when your run ends.
      FragBankplay money

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      FragBank

      About FragBank

      FragBank is a pretend bank with play money, made by Jon Taylor for the jhhtaylor YouTube channel. FragBucks (₣) aren't worth anything outside this game and can't be bought, sold or cashed out.

      How this was made, and where AI was used. Jon designed the game and decides what goes in it. Much of the code, including the bots and this page, was written by Claude, an AI model made by Anthropic, using Claude Code, working from Jon's direction. The bots are simple scripted rules, not AI: they follow a plan with a set chance of making a mistake, and they never use bugs.

      The bugs in FragBank are part of the game. It's written the way a lot of real banking code is first written, and the events are based on real bank incidents covered on the channel.

      Built with Go's standard library.