Pressing [?] will bring up a screen showing all the available keyboard controls. As you progress through the game gaining items, some of those items give you additional powers and abilities. If you find such an item, the relevant key will be added to the help screen.
Use the arrow keys to move the Warrior horizontally, vertically, or diagonally.
Use the [A] key to attack a monster. In general, you need to be in range for your weapon in order to attack.
Use the [M] key to bring up the Spells screen, then choose a spell by letter, or press [Enter] if you don’t want to use magic at this point.
Use the [C] key to change your weapon or armor. Follow the directions on screen to choose different armor or a weapon, or press [Enter] if you don’t want to change at this point.
When it’s time to search the room, use the [L] key followed either by [T] or [S] to look for either treasure or a secret door, respectively.
Use the [T] key to take an item that you’re standing over.
Use the [D] key to drop an item.
Use the [I] key to see your inventory.
Use the [E] key to examine an item you’re carrying, and see what it looks like and what it does.
Although the [G] key was intended to save your game, it was never implemented. Sorry, as in real-life, there are no do-overs!
Use the [Q] key to quit the game.
Certain magical items have commands to invoke them. If you find such an item, its description page will tell you the keyboard command, and it it will also be listed on the Keyboard Help screen.