Here is the full list of all 98 A Valley Without Wind achievements.
Be present at the successful completion of a Stealth Assassination (interior) mission.
Be present at the successful completion of 30 missions.
Die 5 times.
Be present at the successful completion of a Boss Gang (interior) mission.
Collect a Rare enchant.
Collect an Uncommon enchant.
Be present at the death of a Lieutenant.
Use a "strategic" guardian power (one that targets a region on the world map, like Summon Wind Shelter, Ocean Buoy, Seek Survivors, etc).
Be present at the successful completion of a Journey To Perfection (interior) mission.
Use a "building" guardian power (one that adds a structure to a settlement).
Craft a tier 1 spellgem.
Be present at the successful completion of a Freefall (interior) mission.
Be present at the successful completion of an Umbra Vortex mission.
Be present at the successful completion of 10 missions.
Be present at the successful completion of a Boss Delve mission.
Be present at the successful completion of a Battleground mission.
Be present at the successful completion of a Stealth Assassination (underground) mission.
Be present at the death of ten minibosses. Note: there are also microbosses that look like normal monsters; they don't count for this.
Be present at the successful completion of a Freefall (underground) mission.
Be present at the successful completion of a secret mission.
Be present at the successful completion of a Boss Tower mission.
Be present at the successful completion of a mission.
Be present at the death of 100 monsters.
Visit A Settlement.
Be present at the death of a miniboss. Note: there are also microbosses that look like normal monsters; they don't count for this.
Die.
Be present at the death of a monster.
Build a settlement up to 10 bonus structures.
Build a settlement up to 20 bonus structures.
Build a settlement up to 30 bonus structures.
Be present at the successful completion of 50 missions.
Be present at the successful completion of 100 missions.
Be present at the successful completion of 300 missions.
Be present at the successful completion of 500 missions.
Be present at the successful completion of a Boss Gang (underground) mission.
Be present at the successful completion of a Build Wind Shelter mission.
Be present at the successful completion of a Fix The Anachronisms (interior) mission.
Be present at the successful completion of a Fix The Anachronisms (underground) mission.
Be present at the successful completion of a Journey To Perfection (surface) mission.
Be present at the successful completion of a Journey To Perfection (underground) mission.
Be present at the successful completion of a Lava Escape (interior) mission.
Be present at the successful completion of a Lava Escape (underground) mission.
Be present at the successful completion of a Rescue Survivor (interior) mission.
Be present at the successful completion of a Rescue Survivor (underground) mission.
Be present at the successful completion of a mission created by a Guardian Power.
Craft a tier 2 spellgem.
Craft a tier 3 spellgem.
Craft a tier 4 spellgem.
Craft a tier 5 spellgem.
Die 25 times.
Die 50 times.
Die 100 times.
Collect an Epic enchant.
Collect a Legendary enchant.
Collect a Legendary Acid Gills enchant.
Collect a Legendary Overload enchant.
Collect a Legendary Double Jump enchant.
Collect a Legendary Featherweight enchant.
Collect a Legendary Niche Air enchant.
Collect a Legendary Energetic Mind enchant.
Collect a Legendary Cloak Of Shadows enchant.
Collect a Legendary Power Legs enchant.
Collect a Legendary Powerslide enchant.
Collect a Legendary Risktaker enchant.
Collect a Legendary Air Slash enchant.
Collect a Legendary Stone Legs enchant.
Collect a Legendary Triple Jump enchant.
Be present at the death of three Lieutenants.
Be present at the death of five Lieutenants.
Be present at the death of 100 minibosses. Note: there are also microbosses that look like normal monsters; they don't count for this.
Be present at the death of 1000 monsters.
Be present at the death of 10000 monsters.
Be present at the death of an overlord.
Be present at the death of two overlords.
Be present at the death of three overlords.
Be present at the successful completion of 10 Battleground missions.
Be present at the successful completion of 10 Boss Gang missions.
Be present at the successful completion of 10 Boss Tower missions.
Be present at the successful completion of 10 Build Wind Shelter missions.
Be present at the successful completion of 10 Fix The Anachronisms missions.
Be present at the successful completion of 10 Journey To Perfection missions.
Be present at the successful completion of 10 Lava Escape missions. You DO realize that if you don't want to die, YOU STAY OUT OF THE VOLCANO, right? RPG characters never learn...
Be present at the successful completion of 10 Rescue Survivor missions.
Be present at the successful completion of 10 Stealth Assassination missions.
Be present at the successful completion of 10 Supply Depot Meteor Storm missions.
Be present at the successful completion of 10 Umbra Vortex missions.
Collect a Legendary Boomstick enchant.
Be present at the successful completion of 10 Freefall missions.
Be present at the successful completion of 10 Boss Delve missions.
Be present at the successful completion of a Supply Depot Meteor Storm mission.
Collect a Legendary Resilient Form enchant.
Collect a Legendary Water Power enchant.
Collect a Legendary Diverse Wrath enchant.
Collect a Legendary Earth Power enchant.
Collect a Legendary Entropy Power enchant.
Collect a Legendary Fire Power enchant.
Collect a Legendary Light Power enchant.
Collect a Legendary Air Power enchant.