Here is the full list of all 44 Fireside achievements.
Fix the bridge in the mangrove forest
Travel to the island in the river delta
Place the river delta token on its shrine
Visit all the campsites in the swamp
Complete the castle text adventure
Pet Rocky
Place the forest token on its shrine
Gift a coin to the ferry frogs in the forest
Side with Owl and keep Hazel’s axe
Side with Hazel and return her axe
Discover the farmhouse in the mountains
Get enough goo for Shoggy to regrow all his arms
Visit all the mountain-top campsites
Just a Did You Know fact: Buddy is our artist Linus’s dog
Place the mountain token on its shrine
Upgrade all parts of the house to their maximum level
Have a friend visit you at home
Cook 10 dishes
Cook 50 dishes
Cook 250 dishes
Make 50 successful trades
Make 150 successful trades
Make 500 successful trades
Complete 10 blackboard missions
Complete 30 blackboard missions
Complete 75 blackboard missions
Visit all the campsites
Upgrade all the shrines in the river delta, forest, and mountains
Stay on the home screen for 30 minutes without doing anything
Beat the game and watch the credits
Get a frangipani
Get a pearl
Get a silver lily pad
Get a sun hat and a towel
Get a ranger hat, multitool, and axe
Get a beautiful feather
Get a ring
Get an edelweiss
Get a fossil
Get a rain poncho and a scarf
Help Kevin find his mother
Help Siggi fulfill his dream of becoming a dragon
Help Knack fix the spirit nexus
Give someone an item without asking for anything in return