Here is the full list of all 18 The Harvest achievements.
Kill 100 Enemies
Reach XP level 10
Collect all 10 BB-7 Recorders
Hit 3 enemies at once with the line laser as Raptor
Escape from the crash site bunker
Collect 1000 energy points from your fallen foes
Complete the game without dying
Complete the game in 4 hours or less
Increase one of your basic stats to 50
Complete the game with all 5 character classes
Use the Speed Boost to hit 3 enemies at once
Destroy the Area 2 boss - Enki
Attack 3 enemies with Wind Walk activated
Destroy the Area 3 boss - Kingu
Destroy the final boss
Use the EMP to freeze 3 enemies at once
Hit 3 enemies at once with a Condor Mine
Collect 10000 Plasma