Here is the full list of all 50 The Walking Dead: Survival Instinct achievements worth 1,000 gamerscore.
Completed the Game with Only 1 Firearm and 1 Bullet Left in Your Inventory
Arrived at Final Destination with Only Male Survivors
Entered Sherwood Without Any Survivors
Survived 5 Breakdowns
Completed a Marked Destination on the Map without Taking Any Damage
Chose to Travel at Least Once with Every Optional Survivor
5 Survivors Were Killed While Scavenging
Completed a Marked Destination on the Map Using Only the Crossbow
Shot a Walker with 10 Bolts without Killing It
Completed a Marked Destination on the Map without Killing a Walker
Arrived at Final Destination with Only Female Survivors
Restored Survivors 25 Times
Explored 25 Unmarked Travel Locations
Completed All Marked Destinations on the Map
Collected Every Stuffed Squirrel
Dismembered 250 Limbs
Killed a Walker That Is Falling Due to Dismemberment
Found Every Useable Vehicle
Found Every Poster
Shot a Walker in the Knee with a Bolt
Completed 25 Optional Objectives
Prevented 50 Walkers from Grabbing You
Completed the Final Marked Destination on the Map
Consumed 50 MREs
Killed Walkers Using Every Melee Weapon
Killed Walkers Using Every Ranged Weapon
Completed the Third Act
Dismembered All Limbs of 5 Walkers
Consumed 250 Fuel
Completed the Second Act
Pulled a Bolt From a Walker Then Killed Them With It
Fired 300 Bullets
Completed a Marked Destination on the Map Using Only Firearms
Perished 13 Times
10 Walkers Were Killed with Saw Blades in the Logging Camp
Killed 100 Walkers while Grappling
Dismissed a Survivor
Completed the First Act
Prevented a Walker from Damaging You by Severing Its Attacking Limb
Performed Execution Kills on 50 Walkers
Killed 5 Walkers with One Explosion
Killed 4 Walkers in a Single Grapple Sequence
Explored an Unmarked Travel Location
1 Optional Survivor Recruited
Sprinted Until You're Exhausted 10 Times in One Level
Completed a Marked Destination on the Map without Being Grabbed by a Walker
Completed the First Location
Killed 5 Walkers in the Cabot Ridge Creek Bed
Distracted 50 Walkers with Items
Killed Multiple Walkers with One Bullet