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