Interaction can be limited to examining objects, talking to characters (often called NPC - non player character) with the story. In some games you can be involved in fighting, though not normally to the extent of a role-playing game.
 
Interaction can be limited to examining objects, talking to characters (often called NPC - non player character) with the story. In some games you can be involved in fighting, though not normally to the extent of a role-playing game.
 
=== What other systems are available for writing I.F.? ===
 
=== What other systems are available for writing I.F.? ===