Here is the full list of all 50 Ragnarok Odyssey trophies - there are 38 bronze, 9 silver, 2 gold and 1 platinum.
All trophies acquired.
Played through 100 solo quests.
Collected all cards in the game.
Died 100 or more times during solo questing.
Played through 100 online co-op quests.
Spent 500,000 zeny at the blacksmith.
Defeated 100 or more foes with knockback.
Defeated 10 foes at once.
Spent 500,000 zeny at the item shop or tailor's.
Completed all in-game quests.
Played through 50 solo quests.
Healed other players for a combined total of over 100,000 HP.
Spent 500,000 zeny at the Kafra.
Spent 100,000 zeny at the blacksmith.
Spent 50,000 zeny at the beauty salon.
Completed the game.
Played through 50 online co-op quests.
Completed Chapter 8.
Completed Chapter 7.
Died 50 or more times during solo questing.
Spent 10,000 zeny at the beauty salon.
Completed Chapter 6.
Spent 100,000 zeny at the Kafra.
Bravely fell in battle during a boss encounter.
Died 30 or more times during solo questing.
Played through 20 solo quests.
Spent 100,000 zeny at the item shop or tailor's.
Completed Chapter 5.
Completed Chapter 4.
Caught 7 enemies in a single knockback.
Died 10 or more times during solo questing.
Completed Chapter 3.
Imbibed 100 or more potions.
Defeated 2,000 foes.
Played through 20 online co-op quests.
Defeated a boss without dying or using any potions.
Played through 10 solo quests.
Completed Chapter 2.
Imbibed 50 or more potions.
Defeated 1,000 foes.
Used Spectrolyte to change your job.
Played through 10 online co-op quests.
Successfully performed a counterattack 100 times.
Defeated 500 foes.
Completed Chapter 1.
Engaged Dainsleif Mode for the first time.
Played multiplayer with 2 or more people for the first time.
Defeated 100 foes.
Died at least once during solo questing.
Collected your first monster card.