Full list of all 45 The Walking Dead: Saints & Sinners achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Give up a total of 10 items to survivors in need.
Decide May's fate
Decide Casey's fate
Get the key to the Reserve
Use guts-mode 15 times.
Kill 10 enemies with propane tank explosions
Kill 3 enemies in a single propane tank explosion
Ignite a propane tank with an explosive arrow
Kill 10 elite walkers by braining them with the Esteemed Mortal
Brain 20 walkers with a screw driver
Kill 13 walkers with a spiked baseball bat
Eat 10 different food items in one day cycle
Craft 5 different items from the Gear Station
Fill every slot in your backpack
Fully Upgrade the Survival Station
Fully Upgrade the Gear Station
Fully Upgrade the Gun Station
Meet Georgia
Meet JB
Find an important Ambre Drawing
Collect 5 pillows and bring them back to the bus
Score a basket in the Rampart gymnasium with a basketball
Craft 5 different items from the Survivalist Station
Eat 3 Twinkle Toes
Speak to a character while in guts-mode
Repair the first pump
Meet May
Craft 5 different items from the Gun Station
Make Contact with Casey
Eat 10 low quality food items
Take medicine while you have no trace of sickness
Climb a total of 50 meters.
Craft all types of meds and bandages (1 of each)
Survive a stirred herd for 2 minutes
Craft and eat one of each craftable food item
Kill 30 humans
Brain 100 Walkers
Grapple with walkers 50 times
Survive 30 complete days in New Orleans (waking up, traveling to a location, and sleeping at night)
Collect every angel statue and bring them back to the bus
Unlock all craftables and complete the story
Unlock all craftables (including found recipes)
Open every safe
Visit all locations
Kill 15 unaware enemies