From 90ad8c0c33b519d5830c69d4128bdc984b5e9de8 Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Mon, 5 Oct 2026 14:22:14 -0400
Subject: feat: cryptocurrency exchange added to casino

---
 data/help/crypto.yaml | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 data/help/crypto.yaml

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+name: crypto
+aliases: [cryptocurrency, crypto exchange, use crypto]
+category: Interaction
+related: [predictions, bank, casino]
+description: |
+  Crypto Exchange
+
+  Go east from the Prediction Exchange and use crypto. Choose a currency
+  from the board, add some trading funds, and buy coins or open a short.
+  One dollar is one credit. All trading uses game credits, not real money.
+
+  Getting started:
+    fund 1000
+    view BTC
+    buy BTC 0.001
+    active
+    close 1
+
+  markets / back       Currency board: BTC, ETH, SOL, DOGE, SHIB
+  view SYMBOL          Price chart with colored daily candles
+  fund CREDITS         Move carried credits into your trading account
+  withdraw CREDITS     Take out available trading funds
+  buy SYMBOL AMOUNT    Buy coins; fractions are welcome
+  short SYMBOL AMOUNT  Back a falling price
+  active / closed      Your open positions / completed trades
+  close ID             Close a whole position (sell and cover also work)
+  contracts            Show the calls and puts trading commands
+  refresh              Update the current screen
+  rules                Quick introduction
+  stop                 Leave the counter without closing positions
+
+  Command hints work just like casino games. Use what or verbs to see them
+  at any time; casino_hints controls automatic hints.
+
+  Contracts
+    Type contracts at the counter to see the option commands. A call backs
+    a rising price; a put backs a falling price. Choose the
+    number of coins, a target price, and 1, 7 or 30 days. For example:
+      quote call BTC 0.01 85000 7
+      option call BTC 0.01 85000 7
+    Use write instead of option to take the other side. Preview written
+    options with quote write-call or quote write-put. Writing can create debt!
+
+    These are house-priced options, not real exchange option contracts.
+    Bought options risk only their premium. They settle in credits at the
+    first UTC midnight at least your chosen number of days away; your
+    receipt shows the date. Settlement uses that day's closing price.
+    Target prices can be between half and twice the current coin price.
+
+  Prices and funds
+    No commission or house spread. Coins trade at Kraken's buy/sell quotes.
+    There is no minimum trade value or maximum exposure. Total cash amounts
+    round to the nearest credit, not each coin's price. Tiny trades can round
+    to zero credits. You still need enough available funds or collateral;
+    normal game balance safeguards and the 50-open-position limit apply.
+
+    Shorts reserve the opening coin value as collateral. Written options
+    reserve the greater of the coin value and target value, with their
+    premium held until closing. Reserved credits cannot be withdrawn.
+    Close values include returned collateral; net profit subtracts your cost.
+
+  Returning to the counter
+    Prices and your positions update only when you use the exchange.
+    There are no background checks, including while you are offline.
+    On your next visit, expired options settle and shorts or written options
+    with too little collateral close at the available price. Large price
+    moves while you are away can leave you owing credits. Missing price or
+    expiry data leaves positions pending rather than inventing a price.
+
+  Debt
+    Losses use your trading funds, then your bank credits. Any unpaid debt
+    stays on your account and takes future bank credit deposits until paid.
+    Bank items are safe. Use repay CREDITS to pay from your carried credits.
+    You cannot open new positions or withdraw trading funds while in debt.
+
+  Charts follow your unicode and color options. Each candle is a completed
+  UTC day: its body shows open/close, and its wick shows the day's range.
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