Games like School Days
Games like School Days include The Sims™ 4, 60 Seconds! Reatomized, inZOI, PC Building Simulator, and Our Life: Beginnings & Always. We matched them by the tags players give School Days on Steam (Education, Survival, Romance, Side Scroller, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

The Sims™ 4
Shared: Romance · Character Customization · Life Sim

60 Seconds! Reatomized
Shared: Choose Your Own Adventure · 2D · Immersive Sim

inZOI
Shared: Character Customization · Romance · Life Sim

PC Building Simulator
Shared: Education · Immersive Sim · Simulation

Our Life: Beginnings & Always
Shared: Romance · Character Customization · Choose Your Own Adventure

60 Seconds!
Shared: Choose Your Own Adventure · Immersive Sim · Wrestling

Don't Starve Together
Shared: Survival · Adventure · 2D

Arcadia Fallen
Shared: Choose Your Own Adventure · Immersive Sim · Character Customization

School Days
Shared: Choose Your Own Adventure · Immersive Sim · Dating Sim

Terraria
Shared: Survival · 2D · Adventure

Love Is All Around
Shared: Romance · Dating Sim · Immersive Sim

Old School
Shared: Education · Survival · Choose Your Own Adventure

LoveChoice
Shared: Romance · Dating Sim · Choices Matter

Electrician Simulator
Shared: Education · Immersive Sim · Simulation

The Sims™ 3
Shared: Character Customization · Life Sim · Romance

I Hate My Waifu Streamer
Shared: Romance · Immersive Sim · Choose Your Own Adventure

Kenshi
Shared: Survival · Immersive Sim · Simulation

Fields of Mistria
Shared: Romance · Dating Sim · Life Sim

Hooked on You: A Dead by Daylight Dating Sim™
Shared: Romance · Choose Your Own Adventure · Dating Sim

Dream Daddy: A Dad Dating Simulator
Shared: Romance · Dating Sim · Character Customization

Baldur's Gate 3
Shared: Character Customization · Romance · Choices Matter

Five Hearts Under One Roof season2
Shared: Immersive Sim · Choose Your Own Adventure · Romance

Home Behind
Shared: Survival · Side Scroller · Adventure

CHANGE: A Homeless Survival Experience
Shared: Choose Your Own Adventure · Character Customization · Life Sim