Here is the full list of all 33 Solar Ash trophies - there are 14 bronze, 13 silver, 5 gold and 1 platinum.
Attain all Trophies
Destroy the Remnant in the Crater
Destroy the Remnant in the Broken Capital
Destroy the Remnant in Ironroot Basin
Destroy the Remnant in the Eternal Garden
Destroy the Remnant in the Mirrorsea
Destroy the Remnant in the Luminous Peak
Activate Cyd
Locate Cyd in the Broken Capital
Locate Cyd in Ironroot Basin
Locate Cyd in the Eternal Garden
Locate Cyd in the Mirrorsea
Locate Cyd in The Luminous Peak
Fully power the Starseed
Destroy the Starseed and free Echo
Activate the Starseed
Complete Lyris' Quest
Complete Ames' Quest
Complete Ahrric's Quest
Complete all NPC quests
Collect 1 Voidrunner Stash
Complete the game in under 3 hours
Kill 5 enemies in under 5 seconds
Kill 3 enemies without touching the ground
Remain airborne for 10 seconds
Collect 1000 Plasma
Collect 5000 Plasma
Collect 10000 Plasma
Collect all Voidrunner Stashes
Find 5 of Tarragon Danderpaw's lost journals
Find all of Tarragon Danderpaws' lost journals
Complete the game on Hardcore Mode
Attain 100% completion on a save file