The NOexistenceN of Lilith Achievement Guide (100%)

If you’re aiming to unlock every achievement in The NOexistenceN of Lilith, you’ll quickly realize that this isn’t the kind of game where you can rush through everything in a single sitting. Some achievements unlock simply by spending time with Lilith, while others depend on real-world dates, late-night conversations, or choosing specific dialogue options.

The good news is that none of the achievements are particularly difficult once you know their requirements. This guide walks you through every achievement and explains the easiest way to unlock each one.

Note: Some achievements currently appear to be affected by bugs in the game’s Early Access version. Where applicable, those issues are mentioned below.

The NOexistenceN of Lilith Achievement Guide (100% Completion)

These achievements unlock by simply keeping the game open and spending time with Lilith.

Anyway, I’m Lilith.

Requirement:

Meet Lilith for the first time.

This achievement unlocks almost immediately after starting a new game.

Your First Hour~

Requirement:

Reach 1 hour of playtime.

Ten Hours and Still Going?

Requirement:

Reach 10 hours of playtime.

Her Morphean Paradox.

Requirement:

Reach 100 hours of playtime.

Important Bug

Many players have reported that these achievements currently do not track Steam playtime correctly.

Instead, the game may require you to:

  • Leave the game running continuously.
  • Avoid closing the application before the required time has passed.

For example, reaching 10 Steam hours may not unlock the achievement unless the game remained open during that entire session.

Chat Achievements

These are some of the easiest achievements in the game.

The conversations do not need to be unique.

Chatterbox

Talk to Lilith 10 times.

Simply continue selecting conversation options until the achievement unlocks.

Between Us

Talk to Lilith 100 times.

Repeated conversations count toward the total.

Time & Date Achievements

These achievements depend on your computer’s clock and real-world schedule.

Good Morning!

Allow Lilith to sleep naturally.

How to Unlock

  • Let Lilith sleep for approximately 9 real hours.
  • Wait for her to wake up on her own.
  • Choose any available morning greeting.

As long as the long sleep requirement was met, any greeting option should unlock the achievement.

Late-Night Whispers

Start a conversation with Lilith during the game’s late-night period.

See the Heart to Heart achievement below for the easiest method.

Happy Birthday!

First, register your birthday inside the game.

Then simply launch the game on that date.

Lilith will celebrate your birthday, unlocking the achievement.

The Day We Met

Launch the game on:

December 16

This references the release date of The NOexistenceN of You AND Me.

Interaction Achievements

These achievements require interacting directly with Lilith.

Lilith’s Dress

Interact with Lilith’s dress or skirt.

Simply click or drag across the lower portion of her outfit.

Rude Awakening

Wait until Lilith falls asleep.

Continue interacting with her until she wakes up.

Where’d You Go?

Occasionally Lilith disappears.

To bring her back:

  • Open the game’s system tray icon.
  • Select Call Lilith.

Once she returns, the achievement unlocks.

Dialogue Route Achievements

These require triggering particular conversations.

Philosophy 101

Choose the dialogue option:

“I feel like talking philosophy.”

This starts Lilith’s philosophy discussion and unlocks the achievement.

Mad at Me?

Trigger one of Lilith’s angry expressions.

Players have reported success by steering conversations toward emotions such as:

  • Annoyance
  • Betrayal
  • Disappointment
  • Hurt
  • Exhaustion
  • Feeling sick

Eventually Lilith will display an angry expression, unlocking the achievement.

Special Conversation Achievements

These achievements take longer because they involve unique conversations.

Heart to Heart

Trigger Lilith’s late-night heart-to-heart conversation.

Default Time Window

Late Night normally runs from:

9:00 PM until 6:00 AM

This schedule is based on the default Realm Schedule but can be adjusted through the system tray settings.

Simply begin talking to Lilith during this period until the Heart-to-Heart dialogue appears.

Memories to Last Forever

Unlock every one-time special conversation.

You’ll need to experience all of the following memories:

  • Life has no meaning.
  • I feel like talking philosophy.
  • Why did you come here?
  • Who are you?
  • Why can I see you?
  • That Night’s Heart-to-Heart (I)
  • That Night’s Heart-to-Heart (II)
  • That Night’s Heart-to-Heart (III)
  • Bake a Cake Together

Important Tip

The three Heart-to-Heart conversations cannot all be completed during one night.

Instead:

  • Trigger Part I.
  • Wait until the following night.
  • Trigger Part II.
  • Wait another night.
  • Trigger Part III.

The game only advances one Heart-to-Heart memory per night.

Miscellaneous Achievement

Our Little Secret

Read one of Lilith’s unread notes.

The easiest method is:

  • Leave the game running for a while.
  • Return later.
  • Open the Notes or Inbox through the system tray.

Birthday messages also count if one appears.

Tips for 100% Completion

If you’re trying to unlock every achievement efficiently:

  • Keep the game running if your playtime achievements aren’t unlocking.
  • Talk to Lilith frequently, even if conversations repeat.
  • Register your birthday early so you don’t forget the birthday achievement.
  • Check the system tray regularly for unread notes.
  • Don’t skip late-night conversations—they’re required for multiple achievements.
  • Be patient with the Heart-to-Heart memories since they only progress once per night.

Most achievements in The NOexistenceN of Lilith aren’t difficult—they simply reward spending time with Lilith and experiencing the game’s many conversations. The only achievements that may test your patience are the lengthy playtime milestones and the multi-night Heart-to-Heart events. As long as you keep checking in regularly, explore different dialogue options, and pay attention to real-world dates and times, you’ll steadily work your way toward 100% completion.