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 Chapter 12 on any difficulty setting.
Complete the game on Medium difficulty or above.
Beat the game using only the Plasma Cutter.
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.
Collect all Schematics.
Discover the Hunter's origins.
Own every weapon in the game.
Create the Master Security Override.
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.
Complete Chapter 6 on any difficulty setting.
Kill the Leviathan.
Place 25 items in Storage.
Use Stasis on 50 enemies.
Dismember 500 Limbs.
Collect 75 Logs.
Complete Chapter 5 on any difficulty setting.
Complete Chapter 4 on any difficulty setting.
Kill a Brute.
Complete Chapter 3 on any difficulty setting.
Pin an enemy.
Complete Chapter 2 on any difficulty setting.
Complete Chapter 1 on any difficulty setting.
Dismember 50 Limbs.
Complete the game in Impossible Mode.
Complete New Game Plus on any difficulty mode.
Install every weapon upgrade.
Kill 30 enemies with the Pulse Rifle.
Kill 30 enemies with the Flamethrower.
Kill 30 enemies with the Ripper.
Kill 30 enemies with the Force Gun.
Kill 30 enemies with the Line Gun.
Kill 30 enemies with the Contact Beam.
Rip off a dangling limb using Kinesis.
Kill 10 enemies with a stomp attack.
Fully upgrade all weapons and equipment.
Pick up a Marker fragment for the first time.
See the alternative ending on any difficulty mode.