Here is the full list of all 49 Dead Space trophies - there are 41 bronze, 4 silver, 3 gold and 1 platinum.
Collect all Trophies
Complete the game on the hardest difficulty setting
Beat the game using only the Plasma Cutter
Upgrade all weapons and equipment
Kill at least 30 enemies with a melee attack
Complete the game on any difficulty setting
Complete Chapter 12 on any difficulty setting
Kill the Hive Mind
Complete Chapter 11 on any difficulty setting
Collect 150 Logs
Find the Peng Treasure
Complete Chapter 10 on any difficulty setting
Dismember 1000 Limbs
Complete Level 6 in Zero-G Basketball
Complete Chapter 9 on any difficulty setting
Escape from a Lurker's grab attack 10 times
Achieve a perfect score in the Shooting Gallery
Force an enemy into a Gravity Panel 5 times
Kill 30 enemies with the Contact Beam
Complete Chapter 8 on any difficulty setting
Kill the Slug Boss with more than 50% Shield strength remaining
Kill the Slug Boss
Kill 30 enemies with the Force Gun
Complete Chapter 7 on any difficulty setting
Kill 30 enemies with the Ripper
Complete Chapter 6 on any difficulty setting
Catch a Brute or Leviathan Pod using Kinesis
Kill the Leviathan
Own every Weapon in the game
Dismember 500 Limbs
Kill 30 enemies with the Flamethrower
Complete Chapter 5 on any difficulty setting
Collect 75 Logs
Complete Chapter 4 on any difficulty setting
Spend 200,000 credits at the store
Survive the ADS Canon with over 50% Shield strength remaining
Kill 30 enemies with the Line Gun
Use Stasis on 50 Enemies
Kill a Brute
Collect 8 schematics
Complete Chapter 3 on any difficulty setting
Kill 30 enemies with the Pulse Rifle
Complete Chapter 2 on any difficulty setting
Zero-G Jump over 100 times
Store 25 Items in Safe
Kill 30 enemies with the Plasma Cutter
Shoot 50 objects using Kinesis
Complete Chapter 1 on any difficulty setting
Dismember 20 Limbs