Objectives

Every class has an objective, whether it is part of a factional objective, or a personal one for neutral classes, your objective dictates how you play the game, and more importantly, who you can help, and who you must dispose of, as the game can only end when no living player has to eliminate another.

Blue Dragon
To win, the Blue Dragon faction must dispose of: Members of the Blue Dragon can win alongside: Members of the Blue Dragon can win in death as long as at least one Blue Dragon member is alive when the game ends.
 * The Unseen
 * The Cult
 * Reapers
 * The Possessor
 * The Usurper (Aftermath Only)
 * The Blue Dragon
 * Alchemists
 * The Madman (Aftermath Only)
 * Mercenaries
 * The King (Neutral)
 * Fools
 * The Scorned

Unseen
To win, the Unseen faction must dispose of: Members of the Unseen can win alongside: Members of the Unseen can win in death as long as at least one Unseen member is alive when the game ends.
 * The Blue Dragon
 * The Cult (The Unseen and the Cult cannot both spawn during regular gamemodes, but if they could they'd need each other dead)
 * Reapers
 * The Possessor
 * The Unseen
 * Alchemists
 * Mercenaries
 * The King (Neutral)
 * Fools
 * The Scorned

Cult
To win, the Cult faction must dispose of: Members of the Cult can win alongside: Members of the Cult can win in death as long as at least one Cult member is alive when the game ends.
 * The Blue Dragon
 * The Unseen (The Unseen and the Cult cannot both spawn during regular gamemodes, but if they could they'd need each other dead)
 * Reapers
 * The Possessor
 * The Cult
 * Alchemists
 * Mercenaries
 * The King (Neutral)
 * Fools
 * The Scorned

Alchemist
To win, Alchemists must survive until the end of the game, as such, Alchemists can win with all factions and classes.

Fool
To win, Fools must be executed for treason, as such, Fools can win with all factions and classes.

King (Neutral)
To win, The King must survive until the end of the game, as such, the King can win with all factions and classes.

Madman (Aftermath Only)
To win, The Madman must get his target or himself executed for treason, as such, the Madman can win with anyone.

Mercenary
To win, Mercenaries must ensure the survival of their targets, as such, they win with all of the factions and classes that their targets win with, even in death.

Reaper
To win, Reapers must dispose of: Reapers may win alongside:
 * The Blue Dragon
 * The Unseen
 * The Cult
 * The Possessor
 * Reapers

Reapers can win in death as long as at least one Reaper is alive when the game ends.
 * Alchemists
 * Mercenaries
 * The King (Neutral)
 * Fools

Possessor
To win, The Possessor must dispose of: The Possessor may win alongside: The Possessor is a unique class and, as such, cannot win with other Possessors (as there aren't any).
 * The Blue Dragon
 * The Unseen
 * The Cult
 * Reapers
 * Alchemists
 * Mercenaries
 * The King (Neutral)
 * Fools

Usurper (Aftermath Only)
To win, The Usurper must dispose of: The Usurper may win alongside: The Usurper is a unique class and, as such, cannot win with other Usurpers (as there aren't any).
 * The Blue Dragon
 * The Madman

Scorned
To win, The Scorned simply has to get his one of his two targets executed, as such, he wins with all factions and classes, even the targets they wanted to see dead.