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.
Achieve User Level 24.
Clear every Test.
Complete each Performance Test.
Complete each Agency Test
Unlock every Upgrade Slot and Passive Slot.
Complete five encounters with all 10 Limiters in use.
Unlock 32 MEM.
Inspect all completed Limiter Files.
Complete each Speed Test.
Clear one of each Test.
Achieve User Level 16.
Inspect all completed Function Files.
Unlock every Process Limiter.
Upgrade a Function with a copy of itself.
Create a Function combination requiring 12 MEM.
Complete the story.
Confront Royce beyond Cloudbank.
Unlock every Transistor Function.
Complete each Stability Test.
Complete each Planning Test.
Complete five encounters with five or more Limiters in use.
Confront Grant and Asher at Bracket Towers.
Confront the Spine at the Bracket Towers facade.
Achieve User Level 8.
Inspect 10 completed Function Files.
Deal at least 2048 damage in one Turn() in the Practice Test.
Deal at least 1024 damage in one Turn() in the Practice Test.
Inspect five completed Function Files.
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.