Here is the full list of all 39 Runefall achievements.
Complete 20 timed levels
Collect 50,000 of each resource
Complete 6 sequences in a level
Use 2 lightning power-ups while using a single zoom power-up
Complete 5 timed levels
Clear 40 pieces with a single morningstar
Clear 20 sand/dirt/grass tiles in a single move
Explore the entire map 10 times
Watch the credits
Build all upgrades
Complete all side-quests
Jump 3 times in 10 seconds
Find all journals
Pick 15 treasure chest locks
Collect 1 of every inventory item
Collect 150 chronicle runes
Build 20 Upgrades
Achieve 25 bonus goals
Find 5 hidden areas
Complete 10 side-quests
Unlock all power-ups
Open 50 treasure chests
Complete 20 untimed levels
Clear 50 resource veins
Collect 10,000 of each resource
Find a hidden area
Complete 5 side-quests
Clear 30 pieces with a single lightning strike
Try all 3 custom cursors
Open 5 treasure chests
Clear 15 resource veins
Collect 25 chronicle runes
Complete 5 sequences in a level
Achieve 5 bonus goals
Build 5 Upgrades
Complete 5 untimed levels
Destroy 3 bombs/amphoras in one match
Create a cascade of 9+ matches
Unlock your first power-up