Here is the full list of all 31 Runic Rampage achievements.
Unlock all other achievements
Take 50000 steps
Defeat 5000 enemies
Loot 100000 gold
Equip the Royal Cepter
Defeat the Boss of Chapter IV
Destroy 50 rocks
Defeat the Boss of Chapter III
Learn all spells
Forge a weapon to its perfection
Destroy 100 barrels
Max out an attribute
Eat a pumpkin
Destroy 50 wood stumps
Defeat the Boss of Chapter II
Posess 10000 gold
150x Combo
Defeat the Boss of Chapter I
100x Combo
Destroy 100 vases
50x Combo
Defeat 100 enemies
Loot 1000 gold
Take 500 steps