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