Here is the full list of all 45 The Mercury Man achievements.
Finish the game without using special ammo.
Leave Mars with the woman you love.
Shoot Julia.
Clear the table during the train trip.
Leave the bunker with Anne.
Deal with Victoridge.
Kill Goldenmouth.
Release Cluck-Cluck.
Execute Pastelo.
Arrest Geldallion.
Execute Gobbarbler.
Arrest Archangelton.
Finish gunsmith’s challenge.
Spend 2 or more hours in the game.
Arrest Riccar Fire.
Finish Prologue.
Collect all posters.
Use all types of special ammo.
Finish the game without deaths.
Drink 50 bottles of beer (during fights).
Smoke 50 cigarettes (during fights).
Use 20 medkids (during fights).
Finish a fight without using beer, cigarettes and medkits from the inventory.
Execute Riccar Fire.
Release Riccar Fire.
Execute Archangelton.
Release Archangelton.
Arrest Gobbarbler.
Release Gobbarbler.
Execute Geldallion.
Release Geldallion.
Arrest Pastelo.
Release Pastelo.
Execute Cluck-Cluck.
Betray Andrew.
Execute all bosses.
Arrest all bosses.
Release all bosses.
Kill all security guards.
Take a train trip without napping.
Shoot Anne.
Refuse to shoot Anne.
Bad ending.
Leave Mars with a friend.
Leave Mars with the man you love.