Be Nice
(Multiplayer Only) Combine your metal tin tray with any item on the crafting mat and equip it, then have another player collect the item from the tray.
Be Extremely Nice
(Multiplayer Only) Combine your metal tin tray with any weapon such as a crafted club on the crafting mat and equip it, then have another player collect the item from the tray.
First Responder
(Multiplayer Only) Revive one player in multiplayer mode, must be done before they die. Players who die to sharks or drowning cannot be revived.
Medic
(Multiplayer Only) Revive ten players in multiplayer mode, must be done before they die. Players who die to sharks or drowning cannot be revived.
Camp Out
(Multiplayer Only) You need to sleep in the same shelter as at least one other player to get this achievement.
Minor Cannibalism
Requires you to eat 2 arms and 2 legs. Can be cooked on a fire or possible stewed. Cutting limbs will reduce sanity by 1 per limb and eating limbs will reduce it 3 per limb. Dried limbs will not count.
Major Cannibalism
Requires you to eat 12 arms and 12 legs. Can be cooked on a fire or possible stewed. Cutting limbs will reduce sanity by 1 per limb and eating limbs will reduce it 3 per limb. Dried limbs will not count.
Trophy Hunter
You need to Display these heads:
- Crocodile
- Deer
- Goose
- Lizard
- Boar
- Raccoon
- Rabbit
- Seagull
- Shark
- Squirrel
- Tortoise
Splatter
Killed downed enemy with rock (Must use a plain rock, not the Upgraded Rock)
Choppy Chop
Chop up 50 bodies for each body, you need to remove all their limbs. I.e. both arms and both legs.
Commercial Fisherman
Kill 6 or more fish with a stick of dynamite
Serial Killer
Kill 100 cannibals. While most people will naturally complete this achievement by playing a longer single player or multiplayer game, the quickest way to complete it is by setting up some traps in a high traffic area and lighting a bonfire to attract large groups of cannibals.
Bite me!
Kill a shark. One sticky bomb will stick to the shark and kill it. Ranged weapons are also recommended. A shark will kill a player in 2-3 bites. They cannot be attacked under water. They are only found in select areas of the sea.
Monster
Kill a bunny. Currently, this achievement can only be successfully done in single player mode. The quickest way to complete this achievement is to start a normal game, once you find a bunny, they can be killed easiest by using a bow, slingshot or throwable rock, but you can also catch them with any kind of spear (you can attack low ground while running without stopping, unlike with other melee weapons) or other methods. Animal Traps can make this easier.
Birdseye
Simply kill any bird with any arrow using either the crafted bow or modern bow in single player mode and you will obtain this achievement. It’s easier if the bird is on the ground.
Fisherman
Build a animal trap in water where fish are. Allow the trap to catch a fish. Must be the water based trap version.
Green Thumb
Grow blueberries, coneflower, and aloe. Blueberries will only grow in a garden, not a wall planter. Mushrooms in caves aren’t required.
Naturopath
Requires you to craft herbal medicine and herbal medicine+, not energy mix or energy mix+
Gabe Fan
Collect all cassette tapes.
See Cassette Player [theforest.fandom.com] or Cassette Tape [theforest.fandom.com]
Unseen
Chop down several bushes until you have 15 leaves, kill a lizard or crocodile and skin it, combine 15 leaves and one lizard skin then equip the stealth armor
Longest Wall
All you need to do is place the “blueprints” for your wall. The player must make sure to make a custom wall as the defensive wall does not work towards this achievement.
Demolition Man
Go into your inventory and equip your bombs, and simply throw one to set it off. Dynamite, Sticky Bombs, and Head Bombs seem to count towards it. See bomb [theforest.fandom.com] for more information.
Boy Scout
Go into your inventory and equip it. See Compass [theforest.fandom.com] for more information.
Handyman
Build a Hunting Shelter, hit it with a low-damage weapon (e.g. an upgraded stick) and then use your repair tool on it. Sap may also work.
Climate Change
Cut down 100 trees using axes, the chainsaw or explosives. Stick trees don’t count.
Don’t Save The Forest
Similar process to Climate Change, just more trees. See Don’t Save The Forest [theforest.fandom.com] for more information.
Demolition Expert
Find a big clump of trees, equip an explosive and throw it near the clump. A good location is the cache near Geese Lake, place an explosive into it and as well as opening the cache, you knock down enough trees for the achievement. Note: stick trees don’t count.
Crafty
See Crafty [theforest.fandom.com]
and/or Crafting [theforest.fandom.com] Singleplayer and Multiplayer.
Good Father
See Toy [theforest.fandom.com]. Once you have all the pieces, go into your inventory and combine each piece to create the entire robot to trigger achievement. Works in single player and multiplayer.
Vegan
See Vegan [theforest.fandom.com] – One of the most difficult achievements in the game.
5 Star Hotel
Sleep in the bed on the Yacht; it is located off of the southern coast of the peninsula. Beware of the shark nearby.
First Night
Survive the first night all the way through. You can sleep if you want to.
You are a fun guy
Eat all mushroom types. See mushroom [theforest.fandom.com], possible to obtain achievement by eating the same type of mushroom in some cases.
Survivalist
Self explanatory, survive 5 nights in game.
Pacifist
Don’t kill any cannibals for more than 10 days in a row. Playing on veganmode works. It seems that playing in Multiplayer mode makes this success easier to get, as you are not playing in Singleplayer you are not killing any cannibals in this mode. This glitch needs to be confirmed. You can use same commands as in Bad Father achievement to speed things up.
Spelunker
Explore all caves. One of the most difficult achievements in the game, time consuming and difficult. Exploring different caves [theforest.fandom.com] on different gamesaves will not combine for progress.
Get Closure
Get Closure is an achievement for finding all the passengers in a single game. See Passengers [theforest.fandom.com] for more information.
Step Master
See Pedometer [theforest.fandom.com] (cannot combine steps between saves). Be aware that steps count only from the moment you get the pedometer. It is possible to use Cheat Engine to edit number of your steps (Value type – 4 bytes).
Survive The Forest
See Story [theforest.fandom.com].
Bad Father
Survive 100 days. Must be completed on one save (This achievement does not total your days across your all your saves).
Make it Rain
This can be done with a fire arrow or the flare gun, particularly in the armsy hallway in the end game section. Simply shoot him with either weapons to set him alight and the sprinklers will set off. This can also be done by shooting a fire arrow at a sprinkler directly.
Gross!
Drink from the water cooler that has the human head inside it. The cooler is found in Sahara Laboratory [theforest.fandom.com], in one of the rooms on the right side of the hallway leading to the second artifact.
You should be looking for Timmy
Build a gazebo. If it’s lower to the ground it will save a lot of logs and sticks.
Daily Grind
Drink from coffee machine. The coffee machines are in the Sahara Laboratory [theforest.fandom.com] cafeteria.
Big Spender
Buy a soda and candy from vending machine. The vending machines are in the lab’s cafeteria – use each of them.
The End
Thank you for reading my Guide and you whould really help me out if you 
