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