Here is the full list of all 53 CONVERGENCE: A League of Legends Story achievements.
Return 8 Scrambot artifacts to Aximander.
Return 12 Clockwork Champions to Corin.
Find and open every chest in the Cultivair.
Find and open every chest in the Entresol.
Defeat Future Ekko in the Clocktower.
Defeat Future Ekko in the Clocktower with no gadgets equipped.
Defeat Syntixi Zarkon.
Defeat Jinx.
Defeat a total of 20 enemies with Temporal Pulse.
Grind for a total of 180 seconds.
Defeat Future Ekko on the Chaincrawler.
Find and open every chest on the Chaincrawler.
Defeat Drake and Vale.
Unlock 10 Chromas and Z-Trails at Elie's Shop.
Defeat Camille.
Defeat 3 enemies with a single Timewinder throw.
Return 6 Clockwork Champions to Corin.
Complete the Lacuna.
Don't ever fight the Watcher in the Lacuna.
Defeat Warwick.
Catch 4 Scrambots.
Find and open every chest in the Sump Sewers.
Use Phase Dive to go through a Chempunk Smasher's energy barrier attack.
Defeat Drake.
Parry enemy attacks a total of 50 times.
Learn 5 Skills from Rungs.
Defeat Zarkon Poingdestre.
Parry an attack from a Boss.
Use Parallel Convergence to simultaneously slow down 5 projectiles.
Get hit by an attack, Rewind, then Parry that same attack.
Recover 30 health by rewinding damage taken.
Defeat Future Ekko in the Courtyard.
Temporal Pulse an enemy into Parallel Convergence, then Phase Dive them.
Find and open all chests in the game.
Defeat 3 enemies with a single Chronobreak.
Choose to give Clovemary to Inna.
Unlock 20 Chromas and Z-Trails at Elie's Shop.
Look at the family portrait up close in Ekko's family apartment.
Find and open every chest in Factorywood.
Find and open every chest in the Fairgrounds.
Craft all Gadgets at the Workbench.
Craft 10 Gadgets at the Workbench.
Choose to give Hexlock to Inna.
Wear the Inx Chroma in the Inx Theater.
Explore the entire Map.
Complete the Sump Sewers without defeating a single Bat, Grub, or Canker.
Complete the game without dying.
Defeat Camille without using Rewind.
Learn 11 Skills from Rungs.
Complete the game in under 6 hours.
Choose to give Syron to Inna.
Find and open every chest in the Inx Theater.
Fight The Watcher.