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