Here is the full list of all 47 Phoenix Point: Year One Edition achievements.
Deal with the Pandoran threat at any difficulty level
Cause an enemy to fall to its death
Obtain solders of each dual class combination (don't have to be in the same game)
Use every character skill (don't have to be in the same game)
Raid haven zone facility
Scrap items worth 10000 total resources
Reach allied reputation with all factions (don't have to be in the same game)
Destroy Pandoran citadel
Build a facility of each type
Recruit a soldier of each class (don't have to be in the same game)
Trade for 10000 total resources
Kill a mindfragger with overwatch when it is jumping on someone's face
Complete Scylla Vivisection
Destroy Pandoran lair
Kill 500 Pandorans (does not have to be in same game)
Kill a Siren when she has someone under mind control
Sabotage haven zone facility
Max out the base stats of a soldier
Evacuate a soldier who is bleeding
Reach allied reputation with a faction
Kill 3 enemies in a single turn, with a single soldier, without explosives
Manufacture an air vehicle
Control 4 phoenix bases
Fully build up a base
Reach aligned reputation with a faction
Steal an aircraft
Steal a research
Reach friendly reputation with a faction
Beat a haven defense mission with no civilian deaths or no structural damage
Destroy Pandoran nest
Build a base facility
Survive an ambush mission
Retrieve all resources from a scavenging mission
Recruit a soldier
Complete a scan
Complete the tutorial
Manufacture an item
Beat the game without allying with any faction
Deal with the Pandoran threat at hero difficulty level
Deal with the Pandoran threat at legend difficulty level
Complete all different game endings
Capture each type of Pandoran (don't have to be in the same game)
Manufacture an item of each type (don't have to be in the same game)
Complete all phoenix research projects
Complete all research projects of one faction
Complete all research projects (don't have to be in the same game)
Mind control 3 enemies at the same time with the same priest