- The Dungeons of Doom
- The Master Of Thieves (occurs ultra rarely)
- Obsoleted Areas/Methods
- The Raffle House
|You feel charged up!
(Extends the duration of all current effects by 5 adventures, restores all MP, and cools zap wands.)
|You feel that the Platinum Yendorian Express Card is ignoring you.
- Even if you have more than one of this item, only one may be used per day.
- In The Daily Dungeon, when you encounter a locked door you are given an additional option "Use your credit card to open the door". Clicking on this option opens the door with the message, "You slide the Platinum Yendorian Express Card in the crack between the door and the wall, and it pops the lock open with ease."
- Though this item is usable, it does not have a "use" link. Instead, it has an "#invoke" link.
- The timer effects are not extended by using this.
- Second prize in The Raffle House on February 9, 2008.
- The Platinum Yendorian Express Card used in KoL originates from NetHack (initial release july 1987), where it is the class-specific quest artifact for the Tourist and can be periodically used (via the "#invoke" command) to recharge wands and enchant rings. Credit cards in NetHack may be used to pick locks. The first line of the description here came from the encyclopedia entry for PYEC in NetHack. Even the icon used to represent it in the inventory is the same in both nethack and KoL.
- The Platinum Yendorian Express Card is even older than NetHack. As stated by nethack wiki, it was a reference to a Commodore 64 game called Wizardry released in 1985. The player manual for that game states that players start with limited gold because "few adventurers have a Platinum Yendorian Express Card.
- The nation of Yendor is even older than Wizardry, as the objective of game rogue (released 1980) is to acquire The Amulet of Yendor. Yendor is Rodney spelled backwards, and was meant to sound Tolkien like.
- The card is also, of course, a reference to the American Express Platinum Card.