Here is the full list of all 36 Infested Planet achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Finish the Tension mission.
Finish a random capture mission with the Burrowing Hive mutation.
Finish the Anabasis mission.
Finish Memento Mori while holding more than 1 point.
Finish the Memento Mori mission.
Finish the The Return mission.
Unlock all weapons, tech and buildings in the campaign.
Win a capture map at Terminus difficulty.
Finish a random capture mission with the Clone Strike mutation.
Finish the Preparations mission.
Finish the Night and Day mission.
Finish Night and Day without losing a point
Finish the Contact mission.
Win a capture map at Abyss difficulty.
Win a capture map at Ruins difficulty.
Finish the Science Station mission.
Finish the Crow's Neck mission.
Kill all hives in the Sudden Strike mission.
Finish the Blitzkrieg mission.
Finish the Foundations mission.
Finish the Arsenal mission.
Finish the Warpath mission.
Finish the Opening Gambits mission.
Kill all hives on a raid map at Terminus difficulty.
Kill all hives on a raid map at Abyss difficulty.
Kill all hives on a raid map at Ruins difficulty.
Finish the Periapsis mission.
Finish the Endgame mission and the campaign.
Finish Night and Day in 11 minutes or faster.
Finish Preparations within 10 minutes.
Finish Tension without losing a crate to the aliens.
Finish Periapsis without losing a bunker.
Undo 10 mutations at once during the Endgame mission.
Finish a random capture mission with the Sharp Spikes mutation.
Finish a random capture mission with the Guardians mutation.
Start a skirmish custom map.