Parsers are Interactive Fiction games that require an input (typed command) to do actions and advance through a story. Parsers are often puzzle focused games, where the goal is to solve them to reach the end.

Through these types commands, you can "move" around, interact with objects and scenery, talk to NPCs and so on and so forth. Parser commands are usually composed of a [VERB + NOUN] , though you will find sometimes that only a [VERB] is required, or you may need a preposition ([VERB + NOUN + PREPOSITION + NOUN] or [VERB + PREPOSITION + NOUN]).

Commands will use simple English, with only the root of verbs and no articles needed.

To move: use the directional compass like [ NORTH ] or [ SOUTH ]. [ UP ] , [ DOWN ],  [ IN/ENTER ], [ OUT/EXIT ] are also accepted.

To examine things: use the command [EXAMINE OBJECT] or the shortcut [X OBJECT]. It is sometimes possible to use other senses like [ TASTE ], [ SMELL ], [LISTEN] or [TOUCH].

To take things: use the command [ GET/TAKE OBJECT ]
To discard objects: use the command [ DROP OBJECT ]
To interact with wearable object: you can [ WEAR OBJECT ] and [ REMOVE OBJECT]
To check your inventory: use the command [INVENTORY] or the shortcut [I]
Other object interaction commands: [ OPEN/CLOSE ], [PUT OBJECT IN/ON OBJECT ], [UNLOCK DOOR (WITH KEY)], [PUSH/PULL OBJECT]

To interact with NPCs: you can [ GREET ] them as a first approach, [ ASK NPC ABOUT _ ] if you have a question for them, or [ GIVE OBJECT TO NPC ] if you want to gift them something.

Other helpful commands: [ HELP ] (for hints/walkthrough), [UNDO] (last action), [L/LOOK] (refresh page), [SAVE/LOAD] (save system), [TSTART/TSTOP] (to make a transcript), [RESTART/QUIT] (to end your playthrough)