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