Games like Ultimate JOI
Games like Ultimate JOI include Mini Motorways, Train Simulator Classic, Digseum, Tricolour Lovestory, and Unpacking. We matched them by the tags players give Ultimate JOI on Steam (Sexual Content, Casual, Simulation, Relaxing, and Minimalist): closest matches first, and among equally close ones the better-known games.

Mini Motorways
Shared: Casual · Simulation · Minimalist

Train Simulator Classic
Shared: Simulation · Casual · Singleplayer

Digseum
Shared: Casual · Simulation · Relaxing

Tricolour Lovestory
Shared: Sexual Content · Casual · Simulation

Unpacking
Shared: Casual · Relaxing · Simulation

Mountain
Shared: Casual · Simulation · Relaxing

House Flipper
Shared: Simulation · Singleplayer · Casual

DAVE THE DIVER
Shared: Casual · Relaxing · Singleplayer

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Singleplayer

Hentai Girl
Shared: Sexual Content · Casual · Relaxing

PowerWash Simulator
Shared: Casual · Simulation · Relaxing

Pretty Neko
Shared: Casual · Sexual Content · Simulation

Papers, Please
Shared: Simulation · Singleplayer · Point & Click

Love Is All Around
Shared: Sexual Content · Singleplayer · Visual Novel

Mini Metro
Shared: Simulation · Minimalist · Casual

A Game About Feeding A Black Hole
Shared: Casual · Relaxing · Simulation

Furry Love
Shared: Sexual Content · Casual · Simulation

Streamer Life Simulator
Shared: Casual · Simulation · Sexual Content

Parkitect
Shared: Level Editor · Relaxing · Simulation

Nodebuster
Shared: Casual · Simulation · Relaxing

An alt girl for skoof
Shared: Sexual Content · Casual · Visual Novel

Passpartout: The Starving Artist
Shared: Casual · Simulation · Relaxing

Hentai Girl Hime
Shared: Sexual Content · Casual · Simulation

Click and Conquer
Shared: Casual · Simulation · Relaxing

