Games like Solaris
Games like Solaris include OneShot, Finding Paradise, Eastward, Impostor Factory, and Firewatch. We matched them by the tags players give Solaris on Steam (Adventure, Cartoony, Pixel Graphics, Atmospheric, and Story Rich): closest matches first, and among equally close ones the better-known games.

OneShot
Shared: Pixel Graphics · Story Rich · Atmospheric

Finding Paradise
Shared: Adventure · Pixel Graphics · Story Rich

Eastward
Shared: Adventure · Pixel Graphics · Story Rich

Impostor Factory
Shared: Adventure · Pixel Graphics · Story Rich

Firewatch
Shared: Adventure · Atmospheric · Story Rich

Stray
Shared: Adventure · Atmospheric · Singleplayer

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

SANABI
Shared: Pixel Graphics · Story Rich · Adventure

Ori and the Will of the Wisps
Shared: Adventure · Atmospheric · Singleplayer

DAVE THE DIVER
Shared: Pixel Graphics · Adventure · Singleplayer

The Witcher 3: Wild Hunt — Remastered
Shared: Adventure · Atmospheric · Story Rich

The Rewinder
Shared: Adventure · Pixel Graphics · Atmospheric

Outer Wilds
Shared: Adventure · Story Rich · Atmospheric

Spirit of the North
Shared: Adventure · Atmospheric · Story Rich

Undertale
Shared: Story Rich · Pixel Graphics · Singleplayer

The Last Campfire
Shared: Adventure · Atmospheric · Singleplayer

There Is No Game: Wrong Dimension
Shared: Adventure · Pixel Graphics · Story Rich

Tomb Raider Game of the Year
Shared: Adventure · Story Rich · Singleplayer

Heartbound
Shared: Adventure · Pixel Graphics · Story Rich

Night in the Woods
Shared: Adventure · Story Rich · Atmospheric

Outcore: Desktop Adventure
Shared: Adventure · Story Rich · Pixel Graphics

Fallout 4
Shared: Adventure · Atmospheric · Singleplayer

What Remains of Edith Finch
Shared: Atmospheric · Story Rich · Adventure

FAR: Lone Sails
Shared: Adventure · Atmospheric · Singleplayer