Here is the full list of all 27 Miasmata achievements.
Hit the creature with an orange
Distract the creature
Successfully hide from the creature
Hit the creature with a tin can
Hit the creature with an apple
Hit the creature with a banana
Add all head statues to the map
Collect every note
collect 32 unique plant/fungi
Beat the game in 3 days or less
Beat the game in 7 days or less
Light every urn on the island
Map the entire mainland coastline
Go to the island's highest point
Synthesize a Herculean Tonic
Synthesize Muscle Emphasis
Synthesize Endurance Emphasis
Synthesize a Mental Stimulant
Synthesize an Energy Stimulant
Synthesize a Clarity Tonic
Synthesize Extra Strength Medicine
Synthesize Basic Medicine
Triangulate a distant landmark
Triangulate your location
Die from drowning
Use every medicine
Synthesize Brain Emphasis