MDA

Mechanics

 * Point and Click: Allows the player walk around the map.
 * Open dialog with an NPC : Basic mechanic that allows the player progress in the game while unfolding other dialog options.
 * Choose dialog options: This makes the player unlock other dialog options with another NPCs in the map.
 * Accuse: Establish an interaction method by which an NPC can be accused to discover the killer.

Dynamics

 * Interrelation between dialogues.
 * Discovery of clues.
 * Ability to fail when accusing an NPC.

Aesthetics

 * Fear of failing in an accusation.
 * Feeling fulfilled by having drawn conclusions.
 * Gratified for saving the more inhabitants the better.