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