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