Lullaby Days

Daughter-raising life sim where a duckling grows into a girl

Sunflo Labs · Released Jan 28, 2022

Reviews: Very Positive; 83% of 124
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 2 years ago; Jul 27, 2024
Minimum PC: 4 GB RAM · 3 GB disk; Full requirements

What is Lullaby Days?

In this single-player fantasy life sim, you schedule your daughter's lessons, work, and reading as she matures. You also explore areas around a lake in side-scrolling RPG sections, fight monsters, and enter contests. Accumulating mana lets you advance her growth early or spend longer developing the abilities needed for different endings.

For you if...

+you enjoy repeat playthroughs that gradually make raising characters easier
+you like balancing daily schedules with exploration and competitions

Not for you if...

−you want a life sim without horror in any endings

What players say

83% of 124 reviews are positive

Players praise the cute presentation and variety of possible endings. Their most consistent complaints concern luck-heavy combat, unclear progression systems, and obscure ending requirements.

Screenshots and trailer

Lullaby Days system requirements

Minimum: 4 GB RAM, 3 GB of disk space.

As published by the developer.

Can my PC run Lullaby Days?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows10
Processor: 2.6 GHz Intel® Core™ i5-750
Memory: 4 GB RAM
Storage: 3 GB available space

Does Lullaby Days have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Lullaby Days run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 170
Steam features: Cloud saves, Family Sharing, Trading cards
Languages: Text only: Korean, English, Japanese.

Does Lullaby Days use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam