Games like Rewind 99
Games like Rewind 99 include Schedule I, Internet Cafe Simulator 2, Streamer Life Simulator 2, Once Human, and PC Building Simulator. We matched them by the tags players give Rewind 99 on Steam (Simulation, Casual, Action, Character Customization, and Life Sim): closest matches first, and among equally close ones the better-known games.

Schedule I
Shared: Simulation · Co-op · Management

Internet Cafe Simulator 2
Shared: Simulation · Management · First-Person

Streamer Life Simulator 2
Shared: Simulation · Casual · Life Sim

Once Human
Shared: Action · Co-op · Open World

PC Building Simulator
Shared: Simulation · Management · First-Person

Slime Rancher
Shared: Simulation · First-Person · Open World

Farming Simulator 22
Shared: Simulation · Co-op · Management

Goat Simulator
Shared: Simulation · Casual · Open World

Paralives
Shared: Simulation · Character Customization · Life Sim

PowerWash Simulator
Shared: Casual · Simulation · First-Person

Wobbly Life
Shared: Simulation · Co-op · Casual

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

Supermarket Simulator
Shared: Simulation · Management · First-Person

Goat Simulator 3
Shared: Simulation · Character Customization · Casual

Disney Dreamlight Valley
Shared: Simulation · Character Customization · Life Sim

Thief Simulator
Shared: Simulation · Co-op · First-Person

Garry's Mod
Shared: Casual · Simulation · Sandbox

Kenshi
Shared: Simulation · Open World · Sandbox

Waterpark Simulator
Shared: Simulation · Co-op · Management

Arma 3
Shared: Action · Simulation · First-Person

Sons Of The Forest
Shared: Co-op · Open World · Base Building

Stardew Valley
Shared: Simulation · Life Sim · Co-op

Finnish Cottage Simulator
Shared: Simulation · First-Person · Casual

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