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