Here is the full list of all 47 Mass Effect trophies - there are 31 bronze, 13 silver, 2 gold and 1 platinum.
Acquire all trophies
Use biotic Singularity 75 times
Use biotic Lift 75 times
Use biotic Stasis 75 times
Use biotic Warp 75 times
Use biotic Throw 75 times
Use biotic Barrier 75 times
Register 150 Sniper Rifle Kills
Complete 1 Mass Effect playthrough on the Insanity difficulty setting. Do not change the setting.
Complete the majority of the game with the krogan squad member
Complete the majority of the game with the Alliance sentinel squad member
Reach 60th level with one character
Complete 2 Mass Effect Playthroughs on any setting
Complete 1 Mass Effect playthrough on the Hardcore difficulty setting. Do not change the setting.
Complete the majority of the game with the turian squad member
Complete the majority of the game with the Alliance soldier squad member
Accumulate 75% of total Renegade points
Register 150 Assault Rifle Kills
Use medi-gel 150 times
Complete 1 Mass Effect Playthrough on any setting
Complete playthrough with shield damage greater than health damage
Reach 50th level with one character
Complete any romance subplot
Complete Virmire
Use Charm or Intimidate to resolve an impossible situation
Complete the majority of the game with the asari squad member
Complete Noveria
Complete the majority of the game with the quarian squad member
Complete the majority of the game
Accumulate 75% of total Paragon points
Complete the Bring Down the Sky mission.
Register 150 Shotgun Kills
Register 250 synthetic enemy kills
Use AI Hacking 75 times
Use Neural Shock 75 times
Exceed 1,000,000 Credits
Use Damping Field 75 times
Register 150 organic enemy kills
Complete Feros
Register 150 Pistol Kills
Use Shield Overload 75 times
Use Sabotage 75 times
Land on an uncharted world
Find all primary Alien: Council Races, Extinct Races and Non-Council Races codex entries
Locate Dr. T'soni in the Artemis Tau cluster
Become a Spectre
Complete Eden Prime