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