PSYCHO-PASS: Mandatory Happiness - Steam Achievement Guide

• When I refer to Save N1, Save T2, etc, it doesn't matter where they are as long as you remember which one is which.  Since Nadeshiko and Tsurugi's saves are separate, I gave them the same numbers, e.g., Save N1 for Nadeshiko, Save T2 for Tsurugi, etc.  Once you've done all of Nadeshiko's achievements, feel free to save over her saves and vice versa.  Alternatively, you could do what I did, and start all of Nadeshiko's saves from DATA 91, and all of Tsurugi's from DATA 81.
• If I just tell you to save and reload within the same bullet point then that's the only time you'll reload that save, so don't worry about where it is.  Avoid saving over one of the numbered saves. 
• There are achievements for endings and routes, the latter generally being who you spend time with at a certain point.  I've tried to be efficient, but the route achievement Toy Box Bros appears on the way to two ending routes in this guide.

Achieved 100,000 Points, VOICE Complete, SCENE Complete, PICTURE Complete

• To access the mini-game - a version of 2048 - go to 'extra' then 'play game'.   You can choose either free-play mode or to work through stages.  I found I generally got around 10,000 points for getting to 2048 in freeplay.  The bonuses for first completing the stages get higher than that, but you can only earn each one once.  There are 9 levels with 9 stages each.  You'll probably still need to do a few freeplays.
• The trick to 2048 is to keep one corner - I choose lower right - as your 'high number' corner.  You then try to build your numbers, from low to high, along the bottom edge.  You should always be pressing down and right, and only ever press up or left if you know your highest number will stay stuck in that corner.
• To spend the points, go to 'content viewer' instead of 'play game'.  Here, you can spend your points to unlock all of the voice clips and images.   You'll only be able to purchase the images after unlocking them in the story.  Some of these will require bad endings.
• SCENE Complete should unlock naturally, as you get all the other achievements.  If you're missing any, check this guide.  I found I had to do Childhood's End twice, despite having already gotten the achievement, to get 27 and 32, and there might have been a few I got through my blind playthroughs before explicitly trying to get all the achievements.  There are also a view obtainable through bad endings.  Unfortunately, I didn't always record which bad endings I completed.  Loading save T5 and making other choices will unlock two bad endings with pictures and scenes.

First Playthrough - Nadeshiko

Creating Save N1

• Choose Nadeshiko.
• Inquire.
• Inquire about friendships.
• Choose to head to the mall.
• Take the supplement.
• "It's possible".
• Ask Kagari and Kunizuka.
• Take the supplement.
• Analyse Area Stress Level.
• Perform a balanced search.
• Give order to infiltrate.
• Don't stop him.
• Don't take the supplement.
• Accept it.
• Take the supplement.
• Secure the fire extinguisher.
• Create Save N1.

Creating Save N2

• Load Save N1.
• Join Akane's team.
• Wait for molotov cocktails to deplete.
• Continue interrogation.
• Search for fire extinguisher.
• Try to force your way through.
• Call out.
• Take the supplement.
• Create Save N2.

Creating Save N3, Demon's Whisper

• Load Save N2.
• Attend hypnotherapy. 
• Demon's Whisper.
• Isolate then exile.
• Because of the risk.
• "Understood".
• Eat with Tsurugi.
• I regret it.
• He's not the only one who's wrong.
• You have become human.
• Create Save N3.

Happy Family

• Load Save N3.
• I'll go with you.
• Happy Family.

Childhood's End

• Load Save N3.
• Go to Sibyl.
• Childhood's End.

Creating Save N4, All the Colours

• Load Save N2.
• Leave.
• Yes.
• All the Colours.
• I experience deja-vu.
• Take the supplement.
• I understand.
• Eat it.
• Request back-up from Tokyo.
• Can't agree or disagree.
• Pull the trigger.
• Create save N4.

When the Time Comes

• Load Save N4.
• Give up.
• I need more time.
• When the Time Comes.

Answer Revealed

• Load Save N4.
• Hug.
• Via sea.
• Answer Revealed.

The Burdened

• Load Save N1.
• Join search team.
• Go the first floor.
• Ambush.
• Interrogate.
• Investigate second floor.
• Try to force your way through.
• Call out.
• Don't take the supplement.
• Leave and recover naturally.
• Yes
• The Burdened.  You can continue playing from this point if you like.

Violet

• Load Save N1.
• Join search team.
• Go to first floor.
• Throw stun grenade.
• Investigate second floor.
• Try to force your way through.
• Call out.
• Don't take the supplement.
• I don't want to remember.
• Yes.
• Violet.  You can continue playing from this point if you like.

Lady Talk

• Load Save N1.
• Join search team.
• Go the first floor.
• Ambush.
• Interrogate.
• Investigate second floor.
• Try to force your way through.
• Call out.
• Take the supplement.
• Leave and recover naturally.
• Lady Talk.  You can continue playing from this point if you like.

Light and Shadow

• Load Save N1.
• Join rescue team.
• Wait for molotov cocktails to deplete.
• Continue interrogation.
• Give order to back down.
• Try to force your way through.
• Push cabinet, seal the exit route.
• Don't take the supplement.
• Leave.
• Yes.
• Light and Shadow.  You can continue playing from this point if you like.

Second Playthrough - Nadeshiko

Creating Save N5

• Choose Nadeshiko.
• Track.
• Inspect the administrative district.
• Head to mall.
• Take the supplement.
• It's possible.
• Ask Kagari and Kunizuka.
• Take the supplement.
• Inspect with Akane.
• Question friends.
• Question residents.
• Conduct an internal investigation.
• Take the supplement.
• Accept it.
• Take the supplement.
• Shoot.
• Create save N5.

An Angel's Smile

• Load Save N5.
• Join rescue team.
• Order a frontal assault.
• Proceed.
• Aim dominator.
• Use stun grenade.
• Call out.
• Don't take the supplement.
• Leave and recover naturally.
• An Angel's Smile.  You can continue playing from this point if you like.

Creating Save N6

• Load Save N5.
• Join search team.
• First floor.
• Aim and call for surrender.
• Go forward.
• Head down the passage.
• Use stun grenade.
• Call out.
• Don't take the supplement.
• Create save N6.

Goddess of Guidance

• Load Save N6.
• Attend hypnotherapy.
• Nod profusely.
• Join the rescue team.
• Have Akane eat it.
• Request back-up from Tokyo.
• Keep quiet and pull the trigger.
• Goddess of Guidance.

Create Save N7, Resting Leadership

• Load Save N6.
• Leave and recover naturally.
• Resting Leadership.
• Don't take the supplement.
• Leave it to me.
• Eat it.
• Request back-up.
• It's an unforgivable belief.
• Create save N7.

Guardian of Life

• Load Save N7.
• Your view is mistaken.
• Keep quiet and pull the trigger.
• Guardian of Life.

Thus, Fate has Proclaimed the End

• Load Save N7.
• I can understand.
• Any last words?
• Thus, Fate has Proclaimed the End.

Eternal Cradle OR Eternal Abyss

• Load Save N6.
• Attend hypnotherapy.
• Object.
• He's a seed.
• Join rescue team.
• Have Akane eat it.
• Request back-up from Tokyo.
• Save and choose "I'm part of Sybil" for a bad ending and an image.  Then reload and choose "I am your mother".
• Eternal Cradle OR Eternal Abyss (this is the entire name of a single achievement, it's not two separate ones).

Third Playthrough - Tsurugi

Creating Save T1

• Choose Tsurugi.
• Inquire.
• Check residence.
• Head to library.
• To study room floor.
• It's just a job.
• Take the supplement.
• Maybe.
• Bring Ginoza.
• Take the supplement.
• Inspect with Akane.
• Investigate the Nursing Commufield.
• Question neighbours.
• Infiltrate.
• Endure.
• Take the supplement.
• Go to counselling.
• I will if I can.
• Take the supplement.
• Protect.
• Lunge.
• Create Save T1.

Creating Save T2

• Load Save T1.
• Join rescue team.
• Pick up metal plate.
• Advance.
• Guard.
• Create Save T2.

Creating Save T3, Man of Stone

• Load Save T2.
• Use stun grenade.
• Point dominator.
• Don't take the supplement.
• Reject advice.
• Man of Stone.
• Think it over alone.
• Don't take the supplement.
• Volunteer to be on the search team.
• Investigate.
• Bring them along.
• Stop by Tsurugi's residence.
• Have Nadeshiko eat it.
• Ask for the public's help.
• Hesitate
• Create Save T3.

A Night to Kill

• Load Save T3.
• The one who judges.
• A Night to Kill.

Those Capable

• Load Save T3.
• Your Mother.
• Those Capable.

The One Who Seeks Chaos

• Load Save 1.
• Join search team.
• Go to first floor.
• Identify yourself and aim.
• Go forward anyway.
• Head down the passage.
• Use stun grenade.
• Fight together with Kogami.
• Don't take it.
• Reject Nadeshiko's advice.

Create Save T4

• Load Save T1.
• Join rescue team.
• Pick up metal plate.
• Advance.
• Entrust rear guard with extinguisher.
• Use stun grenade.
• Create Save T4.

Surprise Weekend

• Load Save T4.
• Fight together with Kogami.
• Take the supplement.
• Take advice.
• An incomplete existence.
• Surprise Weekend.  You can continue playing from this point if you like.

Toy Box Bros

• Load Save T4.
• Point your dominator.
• Don't take it.
• Reject advice.
• Toy Box Bros.  
• Think it over alone.
• Take the supplement.
• Volunteer for the search team.
• If you haven't previously had Tsurugi eat the curry, save here and let him do so to unlock a picture and a scene in the gallery (scene 55).  Then reload and have Nadeshiko eat it.
• Ask for the public's help.
• Create Save T5.

Return of the Masked Princess

• Load Save T5.
• What do you want to do?
• Save and choose "a hard punch" for a bad ending and an image, then reload and choose to shake hands.
• Return of the Masked Princess.

Floating Ark

• Load Save T5.
• I want to run away.
• Be more human.
• Floating Ark.

Fourth Playthrough - Tsurugi

Creating Save T6

• Choose Tsurugi.
• Inquire.
• Inquire about friendships.
• Head to library.
• Take the supplement.
• Maybe.
• Track residency card.
• Take the supplement.
• Hurry.
• Women with young children.
• Stand firm
• Endure.
• Take the supplement.
• Go to counselling.
• I will if I can.
• Take the supplement.
• Protect.
• Lunge.
• Create Save T6.

Grapplers

• Load Save T6.
• Join search team.
• Go down to first floor.
• Ambush them.
• Go forward anyway.
• Head down the passage.
• Use stun grenade.
• Point dominator.
• Don't take it.
• Reject advice.
• Grapplers.  You can continue playing from this point if you like.

Creating Save T7

• Load Save T6.
• Join rescue team.
• Pick up metal plate.
• Advance.
• Entrust rear guard with extinguisher.
• Use stun grenade.
• Point your dominator.
• Create Save T7.

Bedtime Stories

• Load Save T7.
• Take the supplement.
• Take Nadeshiko's advice.
• An incomplete existence.
• Bedtime Stories.  You can continue playing from this point if you like.

Toy Box Bros, Symbol of Faith

• Load Save T7.
• Don't take it.
• Reject advice.
• Toy Box Bros
• Think it over alone.
• Don't take it.
• Volunteer for the search team.
• Have Nadeshiko eat it.
• Ask for the public's help.
• Talk.
• Save and ask Nadeshiko to deal with it to unlock another picture in the gallery.  Then reload and settle it personally.
• Symbol of Faith.

Fifth Playthrough - Tsurugi

Creating Save T8

• Choose Tsurugi.
• Inquire.
• Check residence.
• Investigate.
• Study room floor.
• It's just a job.
• Don't take it.
• Don't screw around with me.
• Bring Ginoza along.
• Don't take it.
• Hurry.
• Women with young children.
• Infiltrate.
• Shout.
• Don't take it.
• Don't go to counselling.
• Don't take it.
• Protect inspector.
• Lunge at the molotov.
• Go down to first floor.
• Use a stun grenade.
• Head down the passage.
• Save here and choose to force your way through to get a bad ending and unlock scene 50 and picture 11 in the content viewer.  This completed my pictures.
• Reload and use stun grenade.
• Point your dominator.
• Don't take it.
• Create Save T8.

Duel on Table

• Load Save T8.
• Reject advice.
• Duel on Table.  You can continue playing from this point if you like.  This was my final scene, though, if you're following this guide in order, both pictures and scenes will likely be complete after playing through the next section.

Summoning Mephistopheles, Song of Magic

• Load Save T8.
• Accept advice.
• A powerless existence.
• Summoning Mephistopheles.  
• Think it over alone.
• Take the supplement.
• Join rescue team.
• I am your father.
• It's emotion.  
• My final TIPS definition unlocked between these choices.
• Persuade Kogami to be your ally.
• Propose a deal.
• That's right.
• Live for our sake.
• Have Yukari open it.
• Stop Alpha.
• Take her hand.
• Song of Magic.