The terms behind how a casino rates your play and what it may give back — worth knowing before you talk to a host.

Average Daily Theoretical (ADT)
The casino's internal estimate of how much they expect to win from you per day of play — the number everything else is based on.
Expected Value
The mathematical edge the casino holds over your total action — used alongside ADT to determine comp eligibility.
Free Play
Casino credit loaded to your players card that can be wagered, but not withdrawn directly.
Resort Credit
A dollar amount credited to your hotel folio — usable toward dining, spa, or retail, depending on the property.
On Approved Credit
A casino credit line extended to known players — an interest-free marker system that lets you play without carrying cash.