Here is the full list of all 18 Bierzerkers achievements.
Finish a match while in a party
Score 100 running goals
Score 100 throwing goals
Compete in 20 matches
Rack up a total of 100 kills
Win 10 matches
Score in overtime
Win a game at the last moment for your team.
Score withing 30 seconds of the match start
Score your first thrown goal
Score your first run goal
Win your first match
Win a match in overtime
Win a game without the opposing team scoring
Kill 10 enemies in a single match
Get 3 kills without dying and receive Thor's blessing
Equip a weapon in the Armory
Finish the tutorial