Here is the full list of all 60 Wildfire achievements.
Complete New Game+
Complete the No Save Reloads challenge on every level
Complete the Speedrun challenge on every level
Collect all meteor shards
Get captured, then escape from prison
Unlock at least 1 stage of every ability
Cremate an enemy on City 2: Crematorium
Let Rigel protect you from an enemy on Mountains 7: Bobcat Pits
Smoke Ride up the smoke plume created by destroyed sulphur crystals
Pickpocket all Kickstarter lockets
Start New Game+
Complete Wildfire's story
Complete the Undetected challenge on every level
Complete the No Kills challenge on every level
Rescue all 40 villagers
Unlock every cell door on City 4: Tower Prison
Crush an enemy with a gate
Infiltrate via the roof before any other entrance on City 3: Chateau Caira
Land on an enemy from high enough to knock them out
Only embrace earth on Mountains 6: Vindius Ridge
Keep three bobcats at bay with one fireball on Mountains 4: Fenn Plateau
Burn every building on City 1: Trade District
Trap an enemy in vines, then set those vines on fire
Trap an enemy in a bubble
Return all five crucibles to their pedestal on Mountains 5: Medo Subpeak
Read all expedition diaries on Mountains 3: Carnota Rise
Pick up a bobcat to mask your scent on Mountains 2: Felidae Crevice
Place three enemies in coffins on Caves 5: Nerii Tomb
Only use water on Caves 3: Obre Cavern
Make an archer accidentally shoot another enemy
Cause an enemy attack to free a captive villager
Melt at least 90% of the snow on Mountains 1: Ambia Moraine
Learn to embrace earth
Lure the demon to the explosive barrels on Caves 7: Sulphur Mines
Destroy all sulphur crystal deposits on Caves 6: Osmo Aven
Never get burnt on Caves 4: Deira Falls
Cause an enemy to fall to their death by surprising them
Don't get wet on Forest 5: Navia Basin
Overhear an argument on Caves 2: Lubri Grotto
Extinguish all fires on Caves 1: Bama Passage
Learn to embrace water
Beat the fuse to the demolition site on Forest 7: Mouth of Uahm
Escort every villager to safety on Forest 6: Dubra Trench
Ensure Ezra is never detected on Forest 4: Mendo Levee
Burn at least 90% of the vegetation on Forest 3: Kumba Gorge
Overhear an argument on Forest 2: Brevis Pass
Make two soldiers panic on Forest 1: Iria Plain
Learn to embrace fire
Complete Wildfire's story in co-op
Fully upgrade all fire, water, and earth abilities
Throw a villager into his own box of oranges
Set fire to everything flammable in Captain Caira's Chateau
Heal Captain Caira's burns with Rejuvenate
Bring a dead enemy back to life with Rejuvenate
Bring a co-op player back to life with Rejuvenate
Survive a fall to your death by carrying Rejuvenating water
Grow a vine by sending earth upward in a bubble
Block an arrow with a body
Make an enemy panic with a flaming chicken
Transplant while carrying a villager