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