Here is a full walkthrough with all achievements and endings guide for you.
Walkthrough Part 1:
- Start a New Game.
- Save 1
- Stay inside and lock all the doors.
- Load Save 1
- Go outside and investigate the noise.
- Maybe it’s okay if she stays…
- Let it go for now. She’s had a rough night.
- It’s not really that big of a deal.
- Save 1 (overwrite)
- Move the trap.
- Ask her what she’s up to.
- Ask her to join you in the garden.
- Answer honestly.
- Read the spam. Just for fun.
- Better avoid the subject.
- Save 2
- Ask her about her favorite memory.
Walkthrough Part 2:
- Read the spam. Maybe it’ll be entertaining.
- Give her some space.
- Hold back… it’s too soon.
- Save 3
- Read the spam anyway. You never know.
- Save 4
- Head for the highway.
- Save 5
- Insist on getting help for Mallory first.
- Save 6
- 555-8484-322
- Load Save 6
- 555-8368-232
- Load Save 5
- Accept treatment.
- Load Save 4
- Continue through the trees.
- Head for the planetarium.
- Load Save 3
- Delete the damn spam! Who cares!?
- Continue through the trees.
- Head for the planetarium.
- Load Save 2
- Ask her about her hopes for the future.
- Read the spam. Maybe it’ll be entertaining.
- Give her some space.
- Hold back… it’s too soon.
- Read the spam anyway. You never know.
- Continue through the trees.
- Keep searching the city.
- Load Save 1
- Leave it where it is.
- Haven’t you had enough confrontation for one day?
- She really should relax and stay off her feet.
- Answer honestly.
- Read the spam. Just for fun.
- Better avoid the subject.
- Ask her about her favorite memory.
- Read the spam. Maybe it’ll be entertaining.
- Give her some space.
- Hold back… it’s too soon.
- Read the spam anyway. You never know.
- Save 1 (overwrite)
- Head for the highway.
- Load Save 1
- Continue through the trees.
Thanks to lylat and Pris for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.