Here is the full list of all 18 Gloomy Village achievements.
Find a gun
Cleanse the church from the undead
Rescue Erna from captivity
Rescue Fiona from captivity
Rescue Theodora from captivity
Rescue Sasha from captivity
Pass the test and receive the Orange Ring
Pass the test and receive the Blue Ring
Pass the test and receive the Green Ring
Pass the test and receive the Purple Ring
Accumulate 10 gold bars (having found)
Open the wrong door
Collect all Four Rings
Rescue all Four captives
Banish the Priestess from your mind
Finish off the Priestess in the Lonely Tower
Finish your adventure