Games like Sisyphus
Games like Sisyphus include Nodebuster, Shelldiver, A Game About Feeding A Black Hole, Keep on Mining!, and Coffee Talk. We matched them by the tags players give Sisyphus on Steam (Incremental, Atmospheric, Relaxing, Casual, and 2D): closest matches first, and among equally close ones the better-known games.

Nodebuster
Shared: Incremental · Casual · 2D

Shelldiver
Shared: Incremental · Casual · Relaxing

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

Keep on Mining!
Shared: Incremental · Relaxing · Casual

Coffee Talk
Shared: Relaxing · Atmospheric · Dialogue Heavy

Hook
Shared: Casual · Relaxing · Abstract

Timber Rush
Shared: Casual · Relaxing · Incremental

Chill with You : Lo-Fi Story
Shared: Relaxing · Atmospheric · Casual

Bills Must Be Paid
Shared: Incremental · Relaxing · Casual

Russian Life Simulator
Shared: Incremental · 2D · Casual

Leaf it Alone
Shared: Relaxing · Incremental · Casual

Glass Masquerade
Shared: Relaxing · Casual · Atmospheric

Digseum
Shared: Incremental · Casual · Relaxing

Cookie Clicker
Shared: Incremental · Casual · 2D

ABZU
Shared: Atmospheric · Relaxing · Casual

To The Core
Shared: Incremental · Casual · 2D

klocki
Shared: Relaxing · Casual · 2D

Oik
Shared: Incremental · Casual · Relaxing

DAVE THE DIVER
Shared: Casual · Relaxing · Singleplayer

Journey
Shared: Atmospheric · Relaxing · Casual

GRIS
Shared: Atmospheric · Relaxing · 2D

Coffee Talk Episode 2: Hibiscus & Butterfly
Shared: Relaxing · Dialogue Heavy · Atmospheric

Click and Conquer
Shared: Incremental · Casual · Relaxing

The Last Cat in the Universe
Shared: Incremental · Relaxing · Casual