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