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.