You will get these achievements just playing through the story.

Out of this World
Awarded for casting Gateway and travelling to another world.



En Guardian!
Awarded for defeating the Guardian of the Woods and bringing him back to his senses.



Anchors Aweigh
Awarded for obtaining the Sea Cow.



Fly the Friendlier Skies
Awarded for befriending Tengri.



Wonder Wand
Awarded for restoring the legendary wand Mornstar to its former glory.



A Tonic for the Djinn
Awarded for defeating the Dark Djinn.



Council Trouncer
Awarded for freeing the other world from the clutches of the Zodiarchy.

Magic Master
Awarded for learning all of Oliver's spells.

Oliver will learn most of his spells from the story, but he gets a few from Horace the ghost boy. Here's where Horace appears, and the answers to his questions:

• Ding Dong Dell, Near the fountain at the back
  
• Al Mamoon, near the milk fountain
  Answer Dragon of the West
  
• Castaway Cove, on a bridge
  Answer Finest Fiber
  
• The Fairy ground, in the map before Big Mama
  Answer Crispy Lettuce
  
• Hemelin, Straight ahead as you enter
  Answer 5
  
• Yule, in the Elder's house near the back
  Answer Blizzard Bloom
  
• Perdida, inside the quest office
  Answer Old Smokey or Jabal Al-Dukhan
  
• Ding Dong Dell, by the fountain after you clear the Ash event
  Answer Unleash
  
• Ara Memoriae, all the way at the back
  Answer Wizard's Robes

Prima Donna
Awarded for learning all of Esther's songs.

Esther will learn all her songs by level 65.



Gunslinger
Awarded for learning all of Swaine's trickshots.

Swaine will learn all his shots by level 68.



Viva the Evolution!
Awarded for managing 10 metamorphoses.



Overfamiliar
Awarded for maximizing a familiar's familiarity.

When you go to the cage option in the menu, you can feed your Familiar treats and raise their affection/stats. Your goal is to get an Familiar to a full 5 hearts of affection. Each Familiar type has a favorite treat, which will grant more growth/affection than other treats.
Sidenote: If you have maxed stat gain for your current affection level, you should ONLY feed the Familiar its favorite type of treat to gain affection.



Pedigree Breeder
Awarded for training a familiar to its full potential.

This is tied to Overfamiliar. When you feed an Familiar treats and their affection level goes up, so does the cap for stat points you can add to. Each heart adds 10 to the cap, and you just need to feed the Familiar enough to get to +50/50 when they have 5 stars.



Familiarizer
Awarded for taming 20 different species.

Shortly after Esther joins your party, you will be able to recruit Familiars that you defeat in battle. Sometimes when you defeat one, it will fall to the ground with hearts. Switch to Esther and choose the Serenade song, and you will recruit the Familiar. After the battle is over, you'll have the chance to confirm recruiting them and change their name if you wish.



Familiarologist
Awarded for taming 250 different species.

Tip: Every unique Familiar you have ever had at one point counts towards this. If you evolve Mitey into Mighty Mite, you'll still have a heart mark for Mitey. Therefore, 1 first form Familiar can count for up to 3 towards your total.

I recommend doing the errands and bounty hunts as you progress through the story to make life a bit easier and less of a grind after you beat the game.

Boy Scout
Awarded for running 15 different errands.



Humanitarian of the Year
Awarded for running 60 different errands.



New Sheriff in Town
Awarded for completing 10 different bounty hunts.



Bounty Hunter
Awarded for completing 60 different bounty hunts.



King of the World
Awarded for defeating the Guardian of Worlds.

This is the final quest, #131. You'll need to clear #121-128, report to the rabbit in the forest below Ding Dong Dell (the forest that doesn't open until after you beat the game once), then go back and accept #129 from the board, clear that, report back to the rabbit, accept #130, clear that, report back to the rabbit, then he will offer you #131. Walk through the door behind him to fight Guardian of the World.


Super Hero
Awarded for collecting all the merit awards.

Here is a list of all merit awards and the stamp card cost

Guildering the Lily
Awarded for amassing a fortune of half a million guilders.

Don't worry about saving money at all during the storyline you will easily get this in post-game.



Treasure Hunter
Awarded for finding all hidden treasure chests.

Here is a link to the ign interactive Map this should help you to find them all.



Globetrotter
Awarded for setting foot in all secluded regions.

To get this, you'll need to have stepped into every town, dungeon, forest, and cave check the Treasure hunter map link to find the entrance to all cave's, Forest dwellings and interior places.



Man of Steal
Awarded for successfully stealing 50 times.

Once Swaine joins your party, his first ability, Mugshot, lets you steal from enemies.



Little Battler Experience
Awarded for winning 1,000 battles.



Glim Reaper
Awarded for gathering 2,000 glims.

When you hit an enemy or an enemy hits you, sometimes a green (HP recovery) or blue (MP recovery) orb will fly out. You need to collect 2000 of these during battles it's ok if they heal 0. Orbs collected by your party members do not count, but orbs auto-collected for you at the end of battle with the Jackpot II merit award do.



Pop Pop Fizz Fizz
Awarded for alchemizing 10 different items.



Mad Scientist
Awarded for alchemizing 120 different items.

This one may take a while. There are 134 different recipes so the achievement will pop when you reach ~90%. When you go to your pot to make items from recipes, you can see the ones you have made have a picture of the item instead of a question mark icon. However, the recipe won't appear until you've found pages for it, and you may not find all of the pages also the items you make from manually choosing materials do count towards your total.

Raising the Stakes
Awarded for collecting your first prize at the casino.

After you finish the storyline at Tombstone Trail, the casino will open. It's to the right, right as you enter the dungeon, and you can't miss it.



High Roller
Awarded for collecting all of the tickets for the Mem-O-Vision by winning big at the casino.

Once you clear the game, they will open a special VIP room section, which you'll need to buy tickets (S rank prizes) for in order to get in. You'll need to buy all 4 tickets (costs 75,000 coins in total) for the achievement. You can either wait until you have the 500k guilders and just buy the required amount of coins (total cost 375,000G at 5G per coin, and you can trade 5,000G at a time), or you can attempt to get them yourself via gambling.



Solosseum Slugger
Awarded for winning your first bout in the Solosseum Series.

About halfway through the game (when you reach Yule or so), the Solosseum Series will open at the Temple of Trials.



Solosseum Supremo
Awarded for becoming the champion of the Solosseum Series.