Here is the full list of all 33 Transistor achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Upgrade a Function with a copy of itself.
Recurse through the story.
Clear every Test.
Complete each Performance Test.
Achieve User Level 24.
Complete each Agency Test
Unlock every Upgrade Slot and Passive Slot.
Complete five encounters with all 10 Limiters in use.
Deal at least 2048 damage in one Turn() in the Practice Test.
Deal at least 1024 damage in one Turn() in the Practice Test.
Clear one of each Test.
Complete each Speed Test.
Inspect all completed Limiter Files.
Create a Function combination requiring 12 MEM.
Inspect all completed Function Files.
Unlock 32 MEM.
Achieve User Level 16.
Inspect 10 completed Function Files.
Inspect five completed Function Files.
Complete five encounters with five or more Limiters in use.
Unlock every Process Limiter.
Complete each Planning Test.
Complete each Stability Test.
Unlock every Transistor Function.
Complete the story.
Confront Royce beyond Cloudbank.
Complete five encounters with one or more Limiters in use.
Confront Grant and Asher at Bracket Towers.
Achieve User Level 8.
Confront the Spine at the Bracket Towers facade.
Use 10 different OVC Terminals.
Confront Sybil at the Empty Set.
Reach the Goldwalk District.