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