Here is the full list of all 16 VentureVerse: Legend of Ulora achievements.
Defeat The Valkyrie of Justice.
Defeat The Warden of Time.
Complete Hollypoint Castle.
Complete The Rainbow Cathedral.
Complete Glimmer Shard Mine.
Complete The Tomb of Tuut O'Rial.
Complete Avii Trials - Power Spheres.
Complete The Eclipsian Monolith.
Complete The Spin-Disk Golf Society.
Complete The Cavern of Cooperation.
Collect every sword.
Collect every wand.
Collect every rune.
Collect every piece of body armour.
Collect every armour palette.
Collect every shield.