Here is the full list of all 83 WarFallen achievements.
Kill your first enemy
Kill first 10 enemies
Be cruel to animals!
Reader of all books in Tutorial
Complete the tutorial
Die by suicide 10 times
Decap 10 heads
Decap 100 heads
Get killed 100 times
Kill a pirahna at Fort Walder
Watch the full credits
Hit the bard 10 times, so he stops playing.
Give 1000 armor
Toss coins to the bard 10 times.
Get 10 kills with Dualswords
Win 10 matches
Kill 10 times with workhammer
Heal infections 10 times
Kill 10 times with horses hooves
Kill 10 times with the Sword & Shield
Kill 10 times with the Longbow
Get 10 kills with throwable daggers
Get 25 kills with throwable daggers
Die 10 times from falling
Get 10 kills with the dual axe
Lost 10 matches
Kill 100 infected
Kill 1000 infected
Get 1 kill with your mighty foot
Get 10 kills with the mighty foot
Reach level 2
Reach level 3
Reach level 4
Reach level 5
Reach level 6
Reach level 7
Reach level 8
Reach level 9
Reach level 10
Reach level 11
Reach level 12
Reach level 13
Reach level 14
Reach level 15
Reach level 16
Reach level 17
Reach level 18
Reach level 19
Reach level 20
Reach level 21
Reach level 22
Reach level 23
Reach level 24
Reach level 25
Reach level 26
Reach level 27
Reach level 28
Reach level 29
Reach level 30
Reach level 31
Reach level 32
Reach level 33
Reach level 34
Reach level 35
Reach level 36
Reach level 37
Reach level 38
Reach level 39
Reach level 40
Reach level 41
Reach level 42
Reach level 43
Reach level 44
Reach level 45
Reach level 46
Reach level 47
Reach level 48
Reach level 49
Reach level 50
Become the most valuable player 10 times
Recieve the Deathbringer medal 10 times
Get the medal for most deaths in a match 10 times
Sadly you have been given the embarrassment medal 10 times