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