Here is a full walkthrough with all achievements and endings guide for you.
Walkthrough Part 1:
- Start a New Game.
The World As We Know It Complete Chapter 1: Prologue
- Save 1
- Stay inside and lock all the doors.
Better Safe Than Sorry…? Stay inside and lock 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.
A Perfect Stranger Complete Chapter 2: Seed
- It’s not really that big of a deal.
RIP in Potatoes Suffer through “breakfast” with Mallory
- Save 1 (overwrite)
- Move the trap.
- Ask her what she’s up to.
How About A Little Hospitality With Your Hostility? Complete Chapter 3: Germination
Second Breakfast! Have a nice breakfast with Mallory!
- Ask her to join you in the garden.
- Answer honestly.
Cheep Cheep Chirp Cheep Introduce Mallory to the baby chicks
Life Is Short. Play Video Games Complete Chapter 4: Growth
The Fastest Way To Your Heart Savor the most amazing breakfast ever with Mallory
- Read the spam. Just for fun.
One Weird Trick! Read the spam once
Dandelion Tamer Pull up over 420 weeds
- Better avoid the subject.
- Save 2
- Ask her about her favorite memory.
The Right Question Ask Mallory about her favorite memory
Exploded Corn and Squashed Grapes Complete Chapter 5: Maturation
Better by the Breakfast Savor the most amazing breakfast ever with Mallory
Walkthrough Part 2:
- Read the spam. Maybe it’ll be entertaining.
- Give her some space.
- Hold back… it’s too soon.
Sunset Over The Solar Panels Complete Chapter 6: Attachment
104° Complete Chapter 7: Integration
- Save 3
- Read the spam anyway. You never know.
Glutton For Punishment Read the spam every time
Insult And Injury Get caught in your own bear trap
- Save 4
- Head for the highway.
A Very Bumpy Ride Hitch a ride into the city
- Save 5
- Insist on getting help for Mallory first.
- Save 6
- 555-8484-322
Close Call Remember the phone number (pretty impressive!)
The Stars Aligned Live happily ever after
Plague City Complete Chapter 8: Infection
- Load Save 6
- 555-8368-232
You Had One Job Get the phone number wrong
- Load Save 5
- Accept treatment.
Instant Regret Accept the offered treatment
- Load Save 4
- Continue through the trees.
Lovingly Patched Discover the heart Mallory stitched into your ripped jeans
- Head for the planetarium.
Your Heart Will Go On Seek treatment, just like you promised
- Load Save 3
- Delete the damn spam! Who cares!?
- Continue through the trees.
- Head for the planetarium.
How Shakespearean Jump
- 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.
Head Over Heels Show up a little too late
- 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.
Cat Earth Theory Get into a car accident
- Load Save 1
- Continue through the trees.
Have A Nice Trip Fall into a forest ravine
Now That’s Dedication Get all 8 endings
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.