Games like Flatinside Simulator
Games like Flatinside Simulator include Mount & Blade II: Bannerlord, The Sims™ 4, Mount & Blade: Warband, Kenshi, and BeamNG.drive. We matched them by the tags players give Flatinside Simulator on Steam (RPG, Life Sim, Sandbox, Open World, and Realistic): closest matches first, and among equally close ones the better-known games.

Mount & Blade II: Bannerlord
Shared: RPG · Open World · Sandbox

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

Mount & Blade: Warband
Shared: RPG · Open World · Sandbox

Kenshi
Shared: Sandbox · RPG · Open World

BeamNG.drive
Shared: Realistic · Sandbox · Open World

Stardew Valley
Shared: Life Sim · RPG · Sandbox

inZOI
Shared: Life Sim · Character Customization · Realistic

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Sandbox · Open World

Coral Island
Shared: Life Sim · RPG · Dating Sim

TOGETHER BnB
Shared: Open World · Life Sim · Dating Sim

My Time at Portia
Shared: RPG · Life Sim · Open World

Grand Theft Auto V Legacy
Shared: Open World · Action · Third Person

My Winter Car
Shared: Life Sim · Realistic · Open World

My Time at Sandrock
Shared: Life Sim · RPG · Sandbox

Mon Bazou
Shared: Sandbox · Life Sim · Open World

Denizen
Shared: RPG · Life Sim · Sandbox

Paralives
Shared: Life Sim · Character Customization · Open World

Kingdom Come: Deliverance II
Shared: RPG · Open World · Realistic

Forza Horizon 5
Shared: Open World · Realistic · Racing

The Elder Scrolls IV: Oblivion Remastered
Shared: RPG · Open World · Character Customization

Sands of Salzaar
Shared: RPG · Open World · Sandbox

Tainted Grail: The Fall of Avalon
Shared: RPG · Open World · Character Customization

Starfield
Shared: RPG · Open World · Character Customization

SnowRunner
Shared: Realistic · Open World · Sandbox