The Dutiful Hero
Willing and Lawful
The dutiful hero knows their mission from the get-go and is ever committed to their quest. While adamant in their resolve, they still have a strong conscience and will attempt to play by the rules first. When acquiring items, they will first attempt to barter or trade goods and services rather than swipe anything that isn't nailed down (unless dealing directly with villains). In the face of crisis, they almost always go on the defensive, opting to run, hide, or make peace - but aren't afraid to rise against a challenge.
Temperament: Sanguine
Phrase that sums them up: "I must save the princess!"
Best Example: King Graham
Other examples: Sonny Bonds, Prince Alexander, Torin, Bobbin Threadbare, Commander Boston Low, Roger Wilco (SQ1,2,3,4)
The Trickster Hero
Willing, but Unlawful
Tricksters share a similar sense of resolve with the dutiful hero, but lean more towards having a flexible moral compass. Often portrayed as a comic character, tricksters use humor, sarcasm, and general sneakiness to solve problems, while often over-looking potential consequences. They lie, cheat and steal whenever convenient and are often driven by their own desires for adventure, justice, or other needs.
Temperament: Phlegmatic
Phrase that sums them up: "I wanna to be a pirate!"
Best Example: Guybrush Threepwood
Other examples: Leisure Suit Larry, Princess Rosella, Laura Bow, Sam & Max, George Stobbart, Indiana Jones
The Reluctant Hero
Unwilling, but Lawful
Unlike the dutiful hero, a reluctant hero never immediately accepts their destiny or wants to leave their comfortable lifestyle for an adventure. Nevertheless, they feel compelled to tread further and further until they're well in over their heads. While a reluctant hero's moral compass can be made flexible in a pinch, their conscience always encourages them to make friends and allies whenever possible, and a lot of their puzzle-solving relies on support from others. Many female adventure game heroes seem to follow this archetype, and they always find themselves battling progressively higher stakes than what they signed up for.
Temperament: Melancholic
Phrase that sums them up: "I can't believe I'm doing this."
Best Example: April Ryan (Longest Journey)
Other examples: Grace Nakimura (debatable), Queen Valanice, Kate Walker
The Anti-Hero
Unwilling and Unlawful
Anti-Heros don't go looking for trouble; trouble finds them. Anti-heros tend to follow their own selfish needs first before a twist in the story has them re-evaluate their priorities. Private eye characters tend to follow this archetype often, as they'll stick their neck on the line for a few bucks, break into a few offices, steal some important documents, and even become a suspect in a case that only they can solve. As mentioned, they aren't afraid to bend the rules for their own needs, but will develop over the course of a story in thanks to a love interest or common goal that has them fighting for something more important.
Temperament: Choleric
Phrase that sums them up: "I'm only in this for the money."
Best Example: Tex Murphy
Other examples: Gabriel Knight (GK1), Ben (Full Throttle), Manny Calavera, Lewton (Discworld Noire), Simon the Sorceror
And I lied in the header... there's actually a fifth type.
The Neutral Hero
Neutral heroes are usually custom-made characters or present in first-person adventures. Generally never given dialogue or motivations, neutral heros are blank slates who just go around solving puzzles until the story is over. Even in third-person adventures, these characters remain unquestioning in their efforts, and need not be provoked to take on or refuse any challenge.
Temperament: All/none of the above
Phrase that sums them up: "..."
Best Example: Pretty much Myst
Other examples: Prince of Shapeir, Klaymen (Neverhood)
