Games like Super Star Adventure
Games like Super Star Adventure include Outer Wilds, OneShot, Hollow Knight: Silksong, Clair Obscur: Expedition 33, and Starfield. We matched them by the tags players give Super Star Adventure on Steam (Singleplayer, Indie, Space, Adventure, and Exploration): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Space · Exploration · Adventure

OneShot
Shared: Indie · Singleplayer · Adventure

Hollow Knight: Silksong
Shared: Indie · Singleplayer · Exploration

Clair Obscur: Expedition 33
Shared: Singleplayer · Exploration · RPG

Starfield
Shared: Singleplayer · Space · Exploration

Hollow Knight
Shared: Indie · Singleplayer · Exploration

Undertale
Shared: Singleplayer · Multiple Endings · Indie

Reventure
Shared: Indie · Adventure · Singleplayer

Hogwarts Legacy
Shared: Singleplayer · Adventure · Exploration

Stray
Shared: Singleplayer · Adventure · Exploration

Tainted Grail: The Fall of Avalon
Shared: Adventure · Singleplayer · RPG

COCOON
Shared: Adventure · Indie · Exploration

Chants of Sennaar
Shared: Singleplayer · Indie · Adventure

The World of Kungfu: Dragon and Eagle
Shared: Indie · Adventure · Singleplayer

Deliver Us The Moon
Shared: Indie · Adventure · Space

No Man's Sky
Shared: Space · Exploration · Adventure

Persona 5 Royal
Shared: Singleplayer · JRPG · Multiple Endings

Crimson Desert Enhanced
Shared: Singleplayer · Adventure · Exploration

Fallout 4
Shared: Singleplayer · Exploration · Adventure

Assassin's Creed® Odyssey
Shared: Singleplayer · Exploration · RPG

鬼谷八荒 Tale of Immortal
Shared: Singleplayer · RPG · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: Singleplayer · Adventure · RPG

FAR: Lone Sails
Shared: Singleplayer · Adventure · Indie

Legend of Mortal
Shared: Multiple Endings · Singleplayer · RPG