Here is the full list of all 11 12 HOURS 2 achievements.
PLAY 1 HOUR.
FIND FIRST CLOCK.
FIND SIX CLOCKS.
HACK DOUGLAS COMPUTER.
HACK SAFE.
FIND WHAT DOES THE DOGLAS HIDE.
SAVE A MAN.
MAKE FRIENDS WITH SOMEONE.
DO NOT BE DETECTED 30 MINUTES.
APPLY AT LEAST ONE TRAP.
COMPLETE THE GAME AND DO NOT BE DETECTED.