Here is the full list of all 49 How to Survive 2 achievements.
Have all "Weapon" skills at the maximum level.
Make every type of weapon.
Have all "In Danger" skills at maximum level.
Have all "Special abilities" skills at the maximum level.
Have all "Stamina" skills at the maximum level.
Drink 50 potions.
Make every type of armor.
Kill 100 infected with silver bullets.
Upgrade 10 weapons with modules.
Finish each of the game's festive quests.
Finish every quest.
Cook every type of recipe.
Prepare every type of potion.
Have all "Survival" skills at the maximum level.
Successfully complete all of the elite quests.
Have the camp at maximum level.
Kill 100 infected with traps.
Reach the maximum level with your character.
Successfully complete all of Kovac's challenges while keeping the pylon intact.
Successfully complete half of Kovac's challenges while keeping the pylon intact.
Hit a car under alarm with a trash can.
Kill 5,000 enemies (of all types).
Meet every character in the game.
Kill 10 infected animals of each species.
Kill 50 infected during a last stand.
Kill 100 infected with flint-tipped fletched ammunition.
Kill 50 nocturnal infected.
Wear the Jester's hat for the first time.
Kill 1,000 infected humans.
Pick 20 locks.
Help an ally in trouble 30 times.
Finish 15 co-operative quests (local or online).
Pick at least one of every type of plant.
Prepare a first potion.
Upgrade a weapon with modules for the first time.
Kill 500 infected with a critical shot.
Finish Kovac's first challenge while keeping the pylon intact.
Finish Kovac's first challenge in co-operative mode (local or online).
Kill at least 2 infected with one arrow or crossbow bolt.
Kill 10 infected with a Bomber explosion.
Equip a pet for the first time.
Pick a lock for the first time.
Enter Kovac's bunker for the first time.
Give an ally an item for the first time.
Finish your first co-operative quest (local or online).
Kill 2 or more enemies at the same time with a melee weapon.
Kill an infected with a charged attack for the first time.
Customize your survivor for the first time.
Join a public camp for the first time.