Here is the full list of all 47 Dead Space achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Complete the game in Impossible Mode.
See the alternative ending on any difficulty mode.
Kill 30 enemies with the Flamethrower.
Rip off a dangling limb using Kinesis.
Complete New Game Plus on any difficulty mode.
Beat the game using only the Plasma Cutter.
Fully upgrade all weapons and equipment.
Install every weapon upgrade.
Kill 10 enemies with a stomp attack.
Pick up a Marker fragment for the first time.
Place 25 items in Storage.
Complete Chapter 12 on any difficulty setting.
Complete the game on Medium difficulty or above.
Kill the Hive Mind.
Complete Chapter 11 on any difficulty setting.
Find the Peng Treasure.
Complete Chapter 10 on any difficulty setting.
Collect 150 Logs.
Pursue Nicole's investigation.
Complete Level 6 in Zero-G Basketball.
Discover the Hunter's origins.
Collect all Schematics.
Create the Master Security Override.
Complete Chapter 9 on any difficulty setting.
Kill 30 enemies with the Force Gun.
Survive the Shooting Gallery.
Complete Chapter 8 on any difficulty setting.
Kill the Leviathan Remnant.
Complete Chapter 7 on any difficulty setting.
Kill 30 enemies with the Line Gun.
Kill 30 enemies with the Contact Beam.
Use Stasis on 50 enemies.
Complete Chapter 6 on any difficulty setting.
Kill the Leviathan.
Own every weapon in the game.
Dismember 500 Limbs.
Kill 30 enemies with the Pulse Rifle.
Collect 75 Logs.
Complete Chapter 5 on any difficulty setting.
Complete Chapter 4 on any difficulty setting.
Kill 30 enemies with the Ripper.
Kill a Brute.
Complete Chapter 3 on any difficulty setting.
Complete Chapter 2 on any difficulty setting.
Pin an enemy.
Complete Chapter 1 on any difficulty setting.
Dismember 50 Limbs.