100% The NOexistenceN of Lilith Achievement Guide

Unlike most games where achievements are tied to combat, exploration, or collectibles, The NOexistenceN of Lilith takes a much more personal approach. Many achievements are earned simply by spending time with Lilith, talking to her, checking in on different days, or experiencing special conversations that unfold naturally over time.

Because of this, it’s very easy to miss some achievements if you don’t know what triggers them. This guide explains every achievement, how to unlock it, and any important conditions you should know before you start working toward 100% completion.

100% The NOexistenceN of Lilith Achievement Guide

These achievements don’t require any special dialogue choices or hidden interactions. Simply spending time with Lilith is enough.

Anyway, I’m Lilith.

How to Unlock

Launch the game and meet Lilith for the first time.

This is the first achievement most players earn and should unlock within moments of starting a new game.


Your First Hour~

Requirement

Spend 1 hour with Lilith.

Ten Hours and Still Going?

Requirement

Reach 10 hours of playtime.

Her Morphean Paradox.

Requirement

Accumulate 100 hours of playtime.

Current Playtime Bug

At the moment, these achievements appear to have a tracking issue for some players.

Instead of counting your total Steam playtime, the game may only register time if it remains open continuously. For example, even if Steam says you’ve played for over 10 hours, the achievement may not unlock unless those hours were spent during one uninterrupted session.

Since this appears to be an Early Access issue, keep this in mind if the achievements don’t unlock immediately.

Conversation Achievements

These achievements are unlocked simply by chatting with Lilith.

The conversations don’t need to be unique, so repeating dialogue still counts toward the total.

Chatterbox

Requirement

Talk to Lilith 10 times.

Simply continue starting conversations until the achievement appears.

Between Us

Requirement

Talk to Lilith 100 times.

Don’t worry about exhausting dialogue options—repeated conversations still contribute toward your total.

Time, Date & Schedule Achievements

Several achievements depend on real-world time rather than in-game progress.

Good Morning!

This achievement only becomes available after Lilith has had a proper night’s sleep.

How to Unlock

  1. Let Lilith sleep naturally for around 9 real hours.
  2. Wait until she wakes up on her own.
  3. When prompted, choose any morning greeting.

The specific greeting doesn’t matter as long as the long sleep condition has been met.

Late-Night Whispers

Begin talking to Lilith during the game’s late-night period.

This achievement is closely tied to the Heart-to-Heart event discussed later in this guide.

Happy Birthday!

Before this achievement becomes available, you’ll need to register your birthday within the game.

Once that’s done, simply launch the game on your birthday and Lilith will acknowledge the occasion.

The Day We Met

Play the game on:

December 16

This date references the release of The NOexistenceN of You AND Me, making it a fun Easter egg for longtime fans.

Interaction Achievements

These achievements are earned by interacting directly with Lilith rather than selecting dialogue options.

Lilith’s Dress

Click or drag your cursor across Lilith’s dress or skirt.

The interaction itself is enough to unlock the achievement.

Rude Awakening

Wait until Lilith falls asleep.

Continue clicking or interacting with her until she wakes up.

She won’t be particularly happy about it, but you’ll earn the achievement.

Where’d You Go?

Occasionally Lilith may disappear.

To bring her back:

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

Once she returns, the achievement unlocks.

Dialogue Route Achievements

These require choosing or triggering specific conversations.

Philosophy 101

Choose the conversation option:

“I feel like talking philosophy.”

Completing this discussion unlocks the achievement.

Mad at Me?

Trigger one of Lilith’s angry reactions.

The easiest way is to guide conversations toward uncomfortable emotions or situations involving:

  • Feeling sick
  • Annoyance
  • Disappointment
  • Betrayal
  • Exhaustion
  • Being bothered by someone

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

Special Conversation Achievements

These achievements take the longest because they’re tied to one-time conversations.

Heart to Heart

Start one of Lilith’s special late-night conversations.

When Does It Happen?

By default, Late Night begins:

9:00 PM

and lasts until:

6:00 AM

These hours follow the default Realm Schedule, although you can customize them through the game’s system tray settings.

Simply begin talking with Lilith during this time until the special conversation starts.

Memories to Last Forever

This achievement requires completing every one-time special conversation stored in the Memories menu.

You’ll need all of the following entries:

  • 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

Heart-to-Heart Progression

The three Heart-to-Heart conversations cannot be completed during the same night.

Instead, the sequence works like this:

Night One

Unlock Heart-to-Heart (I)

Night Two

Unlock Heart-to-Heart (II)

Night Three

Unlock Heart-to-Heart (III)

The game only advances one stage of the conversation per night, so trying to repeat it immediately won’t work.

The remaining conversations can be triggered naturally by continuing to spend time with Lilith and exploring different dialogue options.

Miscellaneous Achievement

Our Little Secret

Lilith occasionally leaves notes while you’re away.

To unlock this achievement:

  1. Leave the game running or step away for a while.
  2. Return later.
  3. Open the Notes or Inbox through the system tray.
  4. Read any unread note.

Birthday notes also count if one appears on your registered birthday.

Tips for Unlocking Every Achievement Faster

Although most achievements happen naturally, a few habits can save you a lot of time.

  • Register your birthday as soon as possible.
  • Talk to Lilith frequently, even if you’ve already seen the dialogue before.
  • Visit the game during different times of the day, especially at night.
  • Check the system tray regularly for unread notes.
  • Don’t rush the Heart-to-Heart conversations—they intentionally progress across multiple nights.
  • If your playtime achievements don’t unlock, try leaving the game running instead of relying solely on Steam’s recorded hours.

The achievements in The NOexistenceN of Lilith are less about completing difficult challenges and more about building a relationship with Lilith over time. Many of them reward patience, curiosity, and simply returning to the game across different days and hours. If you’re aiming for 100% completion, the biggest requirement isn’t skill—it’s consistency. Keep talking to Lilith, check in during different times of day, and eventually every achievement will unlock naturally.