Here is the full list of all 50 Monster Hunter: World trophies - there are 36 bronze, 11 silver, 2 gold and 1 platinum.
Unlock all trophies for Monster Hunter: World.
Complete 50 arena quests.
Obtain a gold crown for many monsters in your hunting log.
Reach hunter rank 100.
Obtain a miniature crown for many monsters in your hunting log.
Max out the research level (up to high rank) for many monsters.
Obtain five highly rare weapons.
Hunt 500 large monsters.
Slay 50 elder dragons.
Obtain a gold crown for 10 or more monsters that appear from low or high rank.
Obtain a miniature crown for 10 or more monsters that appear from low or high rank.
Hunt 50 tempered monsters.
Obtain 100,000 research points.
Possess 1,000,000 zenny.
Complete 50 investigations.
Capture 50 monsters.
Record your first miniature crown for monsters that appear from low or high rank.
Capture a fish known as "the living fossil."
Capture a stiff, bristly creature.
Capture a fluffy, snuggly creature.
Complete 100 quests via multiplayer.
Hunt 100 large monsters.
Capture a creature that glitters like a rainbow.
Hunt your first tempered monster.
Complete 50 optional quests.
Obtain five highly rare pieces of armor.
Complete your first arena quest.
Solve the mystery of the Elder Crossing.
Raise the proficiency of any Palico Gadget to level 10.
Earn the right to take on eight-star assignments.
Earn the right to take on seven-star assignments.
Record your first silver crown or higher for monsters that appear from low or high rank.
Move into an upgraded room.
Successfully guide Zorah Magdaros.
Collect over 50 Guild Cards.
Mount your first monster.
Complete your first investigation.
Establish five camps.
Earn the right to take on five-star assignments.
Capture your first monster.
Befriend your first Tailraider.
Respond to an SOS flare, and help complete 10 quests.
Earn the right to take on four-star assignments.
Earn the right to take on three-star assignments.
Catch your first fish.
Cook your first well-done steak.
Complete a quest via multiplayer.
Earn the right to take on two-star assignments.
Fire an SOS flare for the first time.
Escape the Jagras pack by hiding in some shrubs.