End Game Achievements
Three separate achievements are awarded for completing the main quest based specifically on the choice you make in the final section of the game. When you return to the Spire to get your final revenge against Lucien, save the game before your battle. After you defeat Lucien, Theresa will present you with three choices -- each one leads to a separate ending and, therefore, separate achievement. Choose one, earning the achievement, then immediately reset the game. Load your previously saved game, go through the process again, and selecting another option from Theresa until you've collected all three achievements.
Five-Point Achievements
Five-point achievements are the easiest to earn, and many are available through simple character interactions. Playing fetch with your dog will net you the "Pooch Pamperer" achievement. Likewise, you can earn "The Archaeologist" achievement by digging something up your dog has discovered. To obtain "The Persuader," you either have to persuade a villager to give you a gift or watch another hero do the same. Or you could just kick any chicken you see to earn "The Chicken Kicker" achievement.
10-Point Achievements
Some of the 10-point achievements hinge on interactions with villagers or milestones in your professional life. If you buy a piece of property and are able to sell it for twice its worth, you'll be rewarded with "The Property Magnate" achievement. Or if you'd rather gamble than trade property, play every pub game at least once, then win 500 gold at any game in one sitting to earn "The Gambler." Achievements are also rewarded for weaponry skills. Earn "The Sharpshooter" by hitting three enemies with one shot.
Major Achievements
Major achievements, reserved for significant game moments and accomplishments, are worth 25-100 points. By selecting every silver key in the game, you will earn the 25-point achievement, "The Hoarder." For 50 points and the "New Hero" achievement, you have to defeat the terror of Bower Lake. The 100-point achievements are reserved for the most difficult tasks, such as completing the Hero of Will, Hero of Strength and Hero of Skill. Or, in the case of "The Ruler of Albion," earn a 100-point achievement by owning enough real estate to total 2.5 million gold.