Tunnel (T) or Tunnel (‘^t’)
Tunnelling or mining is a very useful art. There are many kinds of rock, with varying hardness, including permanent rock (permanent), granite (very hard), quartz veins (hard), magma veins (soft), and rubble (very soft). Quartz and Magma veins may be displayed in a special way, and may sometimes contain treasure, in which case they will be displayed in a different way. Rubble sometimes covers an object but is easy to tunnel through, even with your bare hands. Tunnelling ability increases with strength and weapon weight. If you have a digging tool in your pack, the game will automatically use this to dig. This command may take a count, requires a direction, and takes some energy.
Open a door or chest (o)
To open an object such as a door or chest, you must use this command. If the object is locked, you will attempt to pick the lock based on your disarming ability. If you open a trapped chest without disarming the traps first, the trap will be set off. Opening will automatically attempt to pick any door locks. You may need several tries to open a door or chest. This command may take a count, requires a direction, and takes some energy.
Close a door (c)
Non-intelligent and some other creatures cannot open doors, so shutting doors can be quite valuable. Furthermore, monsters cannot see you behind closed doors, so closing doors may allow you to buy some time without being attacked. Broken doors cannot be closed. This command may take a count, requires a direction, and takes some energy.
Disarm a trap or chest, or lock a door (D)
You can attempt to disarm traps on the floor or on chests. If you fail, there is a chance that you will blunder and set it off. You can only disarm a trap after you have found it. The command can also be used to lock a closed door, which will create a hindrance for monsters. Even if many monsters will be able to pick the lock or bash the door down, it will often take them some time. This command may take a count, requires a direction, and takes some energy.
Alter (+)
This special command allows the use of a single keypress to select any of the “obvious” commands above (attack, tunnel, bash, open, disarm), and, by using keymaps, to combine this keypress with directions. In general, this allows the use of the “control” key plus the appropriate “direction” key (including the roguelike direction keys in roguelike mode) as a kind of generic “alter the terrain feature of an adjacent grid” command. This command may take a count, requires a direction, and takes some energy.
Steal (s)
This command is only available to rogues, and allows them to try and steal from a monster. Stealing works better when the player is stealthy and faster than the target monster, and best of all when the victim is asleep. A failed theft will wake the monster; if you really bungle the attempt, the monster may shout out in anger. This command requires a direction and takes some energy.