Ultima 1: The First Age of Darkness

Key	Effect
A	Attack with the weapon you are holding. Unless fighting in a dungeon, you must then indicate an attack direction.
B	Board a raft, frigate or other form of transportation, or mount a horse. You must be standing on the object to board or mount it. Use eXit to get out or get off.
C	Cast a spell. You must first commit the spell to memory, using Ready.
D	Drop unwanted items while in a castle or town. Dropped items can not be retrieved.
E	Enter a town, castle, dungeon or other landmark. You must be standing on the entrance to enter.
F	Fire a weapon from a ship or other armed vehicle.
G	Get adjacent objects.
H	Hyperjump to other stellar sectors at a speed faster than light. Only available in certain vehicles.
I	Inform and Search to reveal the names of places and things that you may Enter. Also detects secret doors and passages in the dungeons, and may grant a view of your surroundings in future transport craft.
K	Climb up or down ladders in dungeons.
N	Noise to toggle sound on or off.
O	Open a coffin in a dungeon.
Q	Quit and save your progress to disk. You can resume the game later from the point you quit.
R	Ready a specified weapon, put on a selected suit of armour, or learn a magic spell. You must do this before you use an item.
S	Steal from the unwatched counters of shoppes and dark caches in castles. Beware, for the guards frown this type of behaviour.
T	Transact business with merchants or kings.
U	Unlock cells in castles or chests in dungeons.
V	View Change to switch the view in future transport craft between front and top perspectives.
X	eXit or dismount you current transportation and travel on foot.
Z	Stats to display your vital statistics, possessions and spells. Also pauses the game.
SPACEBAR	Pass time and eat