Achievements

Achievements for Mass Effect require you to play through the game at least twice to get them all. There are 45 achievements worth 1000 points (achievement points are in paranthesis):
 * Medal of Honor (100) – Complete 1 Mass Effect playthrough on any difficulty.
 * Medal of Feros (25) – Complete Feros.
 * Distinguished Service Medal (25) – Complete Eden Prime.
 * Council Legion of Merit (25) – Complete Virmire.
 * Honorarium of Corporate Service (25) – Complete Noveria.
 * Long Service Medal (25) – Complete 2 Mass Effect playthroughs on any difficulty.
 * Distinguished Combat Medal (25) – Complete 1 Mass Effect playthrough on the Hardcore difficulty setting. Do not change the setting.
 * Medal of Valor (50) – Complete 1 Mass Effect playthrough on the Insanity difficulty setting. Do not change the setting.
 * Pistol Expert (10) – Register 150 Pistol Kills.
 * Shotgun Expert (15) – Register 150 Shotgun Kills.
 * Assault Rifle Expert (15) – Register 150 Assault Rifle Kills.
 * Sniper Expert (15) – Register 150 Sniper Rifle Kills.
 * Lift Mastery (15) – Use biotic Lift 75 times
 * Throw Mastery (15) – Use biotic Throw 75 times
 * Warp Mastery (15) – Use biotic Warp 75 times
 * Singularity Mastery (15) – Use biotic Singularity 75 times
 * Barrier Mastery (15) – Use biotic Barrier 75 times
 * Stasis Mastery (15) – Use biotic Stasis 75 times
 * Damping Specialist (15) – Use Damping Field 75 times
 * AI Hacking Specialist (15) – Use AI Hacking 75 times
 * Overload Specialist (15) – Use Shield Overload 75 times
 * Sabotage Specialist  (15) – Use Sabotage 75 times
 * First Aid Specialist (15) – Use medi-gel 150 times
 * Neural Shock Specialist (15) – Use Neural Shock 75 times
 * Scholar (25) – Finda all primary Alien: Council Races, Extinct Races and Non-Council Races codex entries
 * Completionist (25) – Complete the majority of the game.
 * Tactician (25) – Complete playthrough with shield damage greater than health damage.
 * Medal of Exploration (50) – Land on an uncharted world.
 * Rich Exceed (25) – 1,000,000 Credits.
 * Dog of War (25) – Register 150 organic enemy kills.
 * Geth Hunter (25) – Register 250 synthetic enemy kills.
 * Soldier Ally (20) – Complete the majority of the game with the Alliance soldier squad member.
 * Sentinel Ally (20) – Complete the majority of the game with the Alliance sentinel squad member.
 * Krogan Ally (20) – Complete the majority of the game with the krogan squad member.
 * Turian Ally (20) – Complete the majority of the game with the turian squad member.
 * Quarian Ally (20) – Complete the majority of the game with the quarian squad member.
 * Asari Ally (20) – Complete the majority of the game with the Asari squad member.
 * Power Gamer (20) – Reach 50th level with one character.
 * Extreme Power Gamer (50) – Reach 60th level with one character.
 * Renegade (15) – Accumulate 75% of total Renegade points.
 * Paragon (15) – Accumulate 75% of total Paragon points.
 * Paramour (10) – Complete any romance subplot.
 * Spectre Inductee (15) – Become a Spectre.
 * Charismatic (10) – Use Charm or Intimidate to resolve an impossible situation.
 * Search and Rescue (10) – Locate Dr. T'soni in the Artemis Tau cluster.