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.
Pin an enemy.
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.
Collect 150 Logs.
Complete Chapter 10 on any difficulty setting.
Complete Level 6 in Zero-G Basketball.
Complete Chapter 9 on any difficulty setting.
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 Contact Beam.
Dismember 500 Limbs.
Kill 30 enemies with the Flamethrower.
Complete Chapter 6 on any difficulty setting.
Kill the Leviathan.
Kill 30 enemies with the Ripper.
Collect 75 Logs.
Complete Chapter 5 on any difficulty setting.
Complete Chapter 4 on any difficulty setting.
Kill 30 enemies with the Pulse Rifle.
Use Stasis on 50 enemies.
Kill a Brute.
Complete Chapter 3 on any difficulty setting.
Complete Chapter 2 on any difficulty setting.
Complete Chapter 1 on any difficulty setting.
Dismember 50 Limbs.
Discover the Hunter's origins.
Pursue Nicole's investigation.
Complete the game in Impossible Mode.
Complete New Game Plus on any difficulty mode.
Own every weapon in the game.
Install every weapon upgrade.
Kill 30 enemies with the Force Gun.
Kill 30 enemies with the Line Gun.
Beat the game using only the Plasma Cutter.
Collect all Schematics.
Rip off a dangling limb using Kinesis.
Kill 10 enemies with a stomp attack.
Fully upgrade all weapons and equipment.
Find the Peng Treasure.
Create the Master Security Override.
Pick up a Marker fragment for the first time.
See the alternative ending on any difficulty mode.