. "Cool downs (aka CDs) are cooling off time periods to set limitations on repeatedly performing the same task. In Atlantica Online (and most other MMORPGs), this applies specifically to dungeons."@en . "Cool Downs"@en . "Cool downs (aka CDs) are cooling off time periods to set limitations on repeatedly performing the same task. In Atlantica Online (and most other MMORPGs), this applies specifically to dungeons."@en .