Walter

Start: Beginning of Walter's Route

1. Any

2. `[Save first, Named Point A]` Try to wiggle free

3. Pull `[x3 times]`

4. `[Save first, Named Point B] `"I wasn't trying to hurt myself."

5. `[Save first, Named Point C] `Take it?

6.  Attack him?

7.  "I will kill you!"

8. `[Save first, Named Point D]` Grab bottle?

9. Reach `[x3 times] `

10. Cut your wrist 

Start: Beginning of Walter's Route

1. Any

2. `[Save first, Named Point A]` Try to wiggle free

3. Pull `[x3 times]`

4. `[Save first, Named Point B] `"I wasn't trying to hurt myself."

5. `[Save first, Named Point C] `Take it?

6.  Attack him?

7.  "I will kill you!"

8. `[Save first, Named Point D]` Grab bottle?

9. Reach `[x3 times] `

10. Don't cut yourself?

11. "Yea... better" 

12. `[Save first, named point E] `Don't take it?

13. "Wait!"

14. "I don't want you to."

15. "What's your name?" 

Start: Beginning of Walter's Route

1. Any

2. `[Save first, Named Point A]` Try to wiggle free

3. Pull `[x3 times]`

4. `[Save first, Named Point B] `"I wasn't trying to hurt myself."

5. `[Save first, Named Point C] `Take it?

6.  Attack him?

7.  "I will kill you!"

8. `[Save first, Named Point D]` Grab bottle?

9. Reach `[x3 times] `

10. Don't cut yourself?

11. "Yea... better" 

12. `[Save first, named point E] `Don't take it?

13. "Wait!"

14. "I don't want you to."

 15. "Calm down.." 

Start: Beginning of Walter's Route

1. Any

2. `[Save first, Named Point A]` Try to wiggle free

3. Pull `[x3 times]`

4. `[Save first, Named Point B] `"I wasn't trying to hurt myself."

5. `[Save first, Named Point C] `Take it?

6.  Attack him?

7.  "I will kill you!"

8. `[Save first, Named Point D]` Grab bottle?

9. Reach `[x3 times] `

10. Don't cut yourself?

11. "Yea... better" 

12. `[Save first, named point E] `Don't take it?

13. "Wait!"

14. "I don't want you to."

15. "Shut up!"

16. "She can go first!" 

Start: Load save "Point E"

1. Take the knife? 

2. Kill her

3. "..Yes..." 

Start: Load save "Point E"

1. Take the knife? 

2. Kill her

3. Say nothing, fail the QTE 

Start: Load save "Point E"

1. Take the knife? 

2. Think it over? 

3.Wait and think? 

Start: Load save "Point E"

1. Take the knife? 

2. Think it over? 

3. Attack Walter

4. Do nothing, just fail QTEs until you die 

Start: Load save "Point E"

1. Take the knife? 

2. Think it over? 

3. Attack Walter

4. Attack him, Win QTEs two times in a row 

✦•······················•✦•······················•✦

Start: Load save "Point E"

1. Don't take the knife?

2. "Stop!"

3. Says nothing, fail the QTE 

Start: Load save "Point E"

1. Don't take the knife?

2. Says nothing, fail the QTE

3. Do nothing, fail the QTE again 

Start: Load save "Point E"

1. Don't take the knife?

2. Says nothing, fail the QTE

3. Do nothing, fail the QTE again 

Start: Load save "Point D"

1. Grab Wire?

2. Reach [x3 times]

3. "Yea.. better"

4. Don't take it?

5. "Wait!"

6. "All life is important."

7. Compose yourself, win QTE

8. Take the knife with your wire, win QTE

Start: Load save "Point B"

1. "It's a good spot."

2. Scream?

3. "You're fucking disgusting."

4. No 

Start: Load save "Point B"

1. "It's a good spot."

2. Scream?

3. Silence

4. Silence

5. Any, fail the QTE, obtain Nothing

6. "Option one"

7. "Cooperate?"

8. Behave

9. "How's work been?" 

Start: Load save "Point B"

1. "It's a good spot."

2. Scream?

3. Silence

4. Silence

5. Any, fail the QTE, obtain Nothing

6. "Option one"

7. "Cooperate?"

8. Behave

9. "Is something bothering you?"

10. Stay 

Start: Load save "Point B"

1. "It's a good spot."

2. Scream?

3. Silence

4. Silence

5. Any, fail the QTE, obtain Nothing

6. "Option one"

7. "Cooperate?"

8. Behave

9. "Is something bothering you?"

10. Leave? 

Start: Load save "Point C"

1. Take it?

2. Cut yourself?

3. QTE, Cut yourself [x3 times]

Start: Load save "Point C"

1. Take it?

2. Cut yourself?

3. QTE, Cut yourself, [1 Time]

4. More

5. "It felt good"

6. Give it to him?

7. Any, fail the QTE, obtain Nothing

8. Do nothing, Fail the QTE 

Start: Load save "Point C"

1. Take it?

2. Cut yourself?

3. QTE, Cut yourself, [1 Time]

4. More

5. "It felt good"

6. Give it to him?

7. Any, fail the QTE, obtain Nothing

8. Resist the urge to pick up the knife, win QTE

9. "No..." 

Start: BEFORE entering his route, when you arrived at the bar with him

1. "Uh... Thank you?"

2. "I can see why..."

Start: Load save "Point D"

1. Any, Fail the QTE, Obtain Nothing

2. "Yea.. better"

3. Don't take it?

4. "Wait!"

5. "I don't want you to."

6. "What's your name?"

7. Do nothing, fail the QTE 

Start: Load save "Point D"

1. Any, Fail the QTE, Obtain Nothing

2. "Yea.. better"

3. Don't take it?

4. "Wait!"

5. "I don't want you to."

6. "What's your name?"

7. Win QTE

8. Attack her?

9. Finish Her 

Start: Load save "Point B"

1. "It's a good spot."

2.  Do nothing, Fail QTE

3. Any, Fail QTE, Obtain Nothing

4. Option One

5. Cooperate?

6 Struggle

7. Behave 

Start: Load save "Point B"

1. "It's a good spot."

2.  Do nothing, Fail QTE

3. Any, Fail QTE, Obtain Nothing

4. Option One

5. Kick him off of you?

6. Struggle

7. Struggle 

Start: Load save "Point B"

1. "It's a good spot."

2. Scream

3. Silence

4. "What are you doing?"

5. Any, Fail QTE, Obtain Nothing

6. Option One

7. Cooperate

8. Struggle

9. Behave 

10. ...

Start: Load save "Point B"

1. "Please don't cut me."

2. Scream  `(Also unlocks new CGs)`

3. Any, Fail QTE, Obtain Nothing

4. Option 2

5. Survive the encounter (It is Randomized)

6. ....  

Start: Load save "Point B"

1. "Please don't cut me."

2. Scream  `(Also unlocks new CGs)`

3. Any, Fail QTE, Obtain Nothing

4. Option 2

5. Do not survive the encounter (It is Randomized)

Start: Load save "Point A"

1. Scream

2. Refuse 

`Start: Load save "Point C"`

1. Take it?

2. Cut yourself?

3. cut yourself x1 time

4. More 

5. "It felt good."

6. Try to stop him?

7. "But... like it."

8. Any, Fail QTE, Obtain nothing

9. Fail QTE, pick up the knife

10. Continue?

11. "I'm not hungry."

12. Any 

Note: There seems to be a mistake/typo in the choice tree. For this ending, the in-game guide specifies Sanity > 65, but the opposite appears to be true. Sanity of higher than 65 leads to Forsaken, while lower than leads to Keeps you alive.  But the gist is for Walter to have high Affection, but no Empathy.

Start: Load save "Point D"

1. Wire

2. Reach x3 times 

3. "Yea... better."

4. Take the knife?

5. Think it over?

6. Attack Walter?

7. Win QTE

8. Do nothing

9. Win QTE

10. Win QTE

11. Do nothing

12. Win QTE

13. Do nothing 

Start: Beginning of the game (good god)

Choose She/Her as your pronouns.  I have tried choosing Pecs, He/Him, and Penis, and Walter would not show up to hit on MC. She/Her with chest and penis still works, however. (Note that I have dysphoria disabled. Not sure if that factors.)

1. Mark 

2. Any flavor 

3. Turning off the lights?

4. Let Adam go instead?

5. "Did you follow me here?"

6. "This doesn't feel right..."

7. Don't post it?

8. Ask Adam to hang out

9. Ignore it

10. "I probably shouldn't.."

11. Cafe

12. Sure.

13. "Yes."

14. "I'm sorry I forgot to tell you."

15. "Well, I was hoping Mark would walk with me."

16. "Yes."

17. "Fine."

18. "Did we go to school together?"

19. "What do you do for a living?"

20. "Male or female?"

21. "No."

22. Go inside?

23. "Sure."

24. "Thanks." 

Note: A technically Walter ending that can only be reached before you're locked into his route, during Chapter 0. The gist is to keep everyone alive, avoid being kidnapped, until you get a message claiming to be your old friend. You don't want to figure out who the stalker is, that way you'd agree to go out with them, meet Walter at the bar instead, and get killed. 

This is not the only way to obtain this ending. I believe some of these choices aren't strictly necessary. (Like whether going to a cafe or garden, the partner, etc) but if you find yourself keep getting kidnapped, your friends dying, your partner kidnapped --- following these steps is one surefire way to get the ending.