• add_action
• add_verb
• add_worth
• add_xverb
• all_inventory
• deep_inventory
• enable_commands
• enable_wizard
• environment
• file_name
• first_inventory
• interactive
• living
• move_object
• next_inventory
• remove_action
• set_author
• set_heart_beat
• set_hide
• set_living_name