Here is the full list of all 15 Loot River achievements.
Fund Finnegan’s music education.
Make a deal with Callum.
Double your potion count through investment.
Finish Sunken Village within the time limit.
Have at least three platforms burning at once.
Get kicked down the elevator shaft.
Uncover three secret passages.
Sever Gwen's hand.
Rescue Emmet.
Shatter the Relic.
Unlock all weapons.
Unlock all spells.
Unlock all armour.
Unlock all headgear.
Escape Loot River.