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