Bank Interest & Transaction Log

The island bank can pay periodic interest and keeps a full transaction log.

Interest

When enabled, every island earns interest on its bank balance at a fixed interval.

Cross-server safe

Interest is applied only by the backend server that physically hosts the island, so on a proxy network the balance is never credited twice.

Configuration

bank:
  interest:
    # Turn periodic interest on/off.
    enabled: false
    # Fraction of the (capped) balance added each interval. 0.02 = 2%.
    rate: 0.02
    # How often interest accrues, in minutes.
    interval-minutes: 60
    # Interest is only calculated on balance up to this cap.
    max-balance: 1000000
    # Balances below this earn no interest.
    min-balance: 0
    # How often the task wakes up to check which islands are due, in seconds.
    check-interval-seconds: 60

• Interest is floored to two decimals and added straight to the bank.
• Each interest payment is written to the transaction log as an INTEREST entry.

Transaction log

Every deposit, withdrawal and interest payment is recorded in the shared database, so the history is the same on every server.

Command	Description
/is bank log	Show the most recent bank transactions

Aliases for the sub-command: gecmis, history.

Configuration

bank:
  log:
    # How many recent transactions /island bank log shows.
    lines: 10

Each line shows the time, type (DEPOSIT / WITHDRAW / INTEREST), who did it, the amount and the resulting balance.