Special Monsters
After you have unlocked the Dillmoor area, visit every area in the vicinity at least 150 times to spawn new monsters in each area. The new monsters include flying dragons and a unique beast known as the Landworm. You must go through Baulson's Quest, Celepalis and Dillmoor before these monsters show themselves.
Hidden Achievements
Acquire more than 200,000 gold in currency to unlock the hidden achievement Living Rich, which is worth 10 points. Defeat 30 or more monsters in one battle to unlock The Bloodhunter achievement, which is worth 30 points. Finish the Things Unchangeable quest to unlock the achievement The Final Instance and earn 200 points. To unlock the achievement Lost Words Of The Gods, you must spend more than 100,000 gold during the course of the game. Lost Words Of The Gods is worth 10 points. To unlock The Last Remnant achievement, you must beat The Absolute Conqueror to earn the achievement's 200 points.
Hidden Side-Quests
The game features more than 50 side-quests that offer special rewards you may not otherwise come across. For example, visit The Babbling Brook in Melphina and speak to Yuniver after you have visited the six bases. Yuniver will give you the Seeker Of The Ancient Path quest and reward you with an Amethyst orb and the ability to recruit Yuniver. To unlock the hidden quest The Fated One, talk to the old lady who knows Emmy &Emmy in the town square in Althlum, after Fornstrand. You must defeat Yerva in a duel to receive a superior charge and access to the Ring Of The Labryinth guild. To unlock the hidden quest Tablet Of The Marshall, speak to Marina's Messenger in Athlum after you have acquired the remnant GPS. You will receive the Naumal Niram summon and a Remnant-Binding Tablet as a reward.
Quick Experience
Immediately after you have gained access to the Gaslin Caves and Robelia Castle, you will be grouped with either the character Blockter or Pagus. Keep fighting in the Gaslin Caves and Robelia Castle until you can go through the entire area without leveling up. This will allow you to level up faster than if you played through the game normally, and you will have more advanced skills than normal when you proceed to the next area. Do not enter Dillmoor until after you have grinded Robelia Castle and the Gaslin Caves long enough to reach a high level or this trick may not work. This trick can be time consuming, and you must repeat it several times to be effective.