Mass Effect uses Paragon/Renegade points to track and stabilize the character development. Star Wars: Knights of the Old Republic uses Light/Dark Side points to track and stabilize the story development. Both of these games also use the morality points mechanic to metaphorically describe the story concepts of both games.
The morality points acquired throughout the two games are tracked in an accumulative bar. In Mass Effect the two sides of the scale (Paragon and Renegade) are treated in two exclusive meters. In Star Wars: Knights Of The Old Republic the two sides are measured in the same meter and the points earned negate each other. If you gain a dark side point, the meter moves down and if you earn a light side point, the meter moves up. This means that in Mass Effect you can choose both sides and that in Star Wars: KOTOR you can only take one side.
Film critic Roger Ebert once said; “if you can go through ‘every emotional journey available,’ doesn’t that devalue each and every one of them? Art seeks to lead you to an inevitable conclusion, not a smorgasbord of choices.” The morality points feature helps to keep the player’s actions consistent. In both Mass Effect and KOTOR, the player can only perform certain actions if they have acquired enough points. This encourages the player to choose one side and stick to it.
Mass Effect‘s morality points can be used to increase the protagonist’s persuasive skill. Points are gained by either taking aggressive actions or by taking passive actions. Paragon points contribute to the protagonist’s ability to charm, whereas Renegade points contribute to the protagonist’s ability to intimidate. The player isn’t confined to choosing one side, but the game does recommend it. Mass Effect is a game about a charismatic soldier called “Commander Shepard”, who has to summon a group of elite soldiers to help him defeat a major threat. Shepard uses his emotions to inspire those around him to fight by his side, either through intimidation and discipline or through charm and mutual respect.
KOTOR’s morality points can be used to increase the protagonist’s proficiency in the force. Light side points are gained either by being emotionally unaffected by events or by being politically neutral. Dark side points are gained either by getting emotionally involved in matters where ethics are in question or by losing neutrality. Light side points contribute to the player’s ability to utilize the stabilizing power of the force in combat. Dark side points contribute to the player’s ability to utilize the chaotic and dangerous aspects of the force in combat. The player may choose to change sides at any time in the game, but ultimately they are either destined to restore peace or doomed to fall victim to the temptation of chaos and emotion. In Star Wars: Knights Of The Old Republic, the player has the choice of either ignoring their own personal emotional desires and utilizing that neutrality to remove the unstable elements without bias or blind rage, or embrace the chaotic nature of their emotions and point that chaos in the direction of their enemies.