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