Games like The Sisyphus journey
Games like The Sisyphus journey include Firewatch, OneShot, What Remains of Edith Finch, Journey, and Finding Paradise. We matched them by the tags players give The Sisyphus journey on Steam (Adventure, Walking Simulator, Side Scroller, Exploration, and 2D): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

OneShot
Shared: Pixel Graphics · Adventure · Story Rich

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Exploration

Journey
Shared: Adventure · Exploration · Walking Simulator

Finding Paradise
Shared: Adventure · 2D · Pixel Graphics

DAVE THE DIVER
Shared: Adventure · Pixel Graphics · Exploration

UNREAL LIFE
Shared: Adventure · Side Scroller · Pixel Graphics

Hollow Knight
Shared: 2D · Exploration · Adventure

To the Moon
Shared: Adventure · Pixel Graphics · Story Rich

Impostor Factory
Shared: Adventure · 2D · Pixel Graphics

Five Nights at Freddy's: Into the Pit
Shared: Adventure · 2D · Pixel Graphics

Terraria
Shared: Adventure · 2D · Pixel Graphics

DEATH STRANDING DIRECTOR'S CUT
Shared: Walking Simulator · Adventure · Atmospheric

DISTRAINT 2
Shared: Side Scroller · Walking Simulator · Atmospheric

SANABI
Shared: Adventure · Pixel Graphics · 2D

Rain World
Shared: Exploration · Atmospheric · Pixel Graphics

OMORI
Shared: Pixel Graphics · Story Rich · 2D

Gone Home
Shared: Walking Simulator · Exploration · Atmospheric

The Beginner's Guide
Shared: Walking Simulator · Adventure · Atmospheric

A Bird Story
Shared: Adventure · Pixel Graphics · 2D

Hollow Knight: Silksong
Shared: 2D · Exploration · Adventure

INMOST
Shared: Adventure · Pixel Graphics · Exploration

DISTRAINT: Deluxe Edition
Shared: Adventure · 2D · Pixel Graphics

Reventure
Shared: Adventure · Pixel Graphics · 2D