Here is the full list of all 23 Tron: Identity achievements.
Find a partner.
Defrag your first disc.
Get your bearings.
Witness another disaster.
Complete your investigation.
Find your first codex hotspot.
Unlock half of the codex hotspots.
Discover all codex hotspots.
Defrag a disc with blockers for the first time.
Successfully defrag a disc with locks.
Solve a disc with swapper errors.
Complete defragmentation of a disc with spawners.
Complete a timed defrag.
Proceed solo.
Defend the repository from an outside threat.
Allow an outside threat to enter the Repository.
Create a power vacuum in the Repository.
Allow an important program to be taken.
Inspire someone to change their path.
Extend a program’s containment.
Put a program back in their place.
Keep everyone running.
Get a program out of the Repository.