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