Games like Basement
Games like Basement include Slime Rancher, Firewatch, Hollow Knight, Fallout 4, and Hollow Knight: Silksong. We matched them by the tags players give Basement on Steam (Exploration, Adventure, First-Person, Singleplayer, and Mining): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Exploration · Adventure · Singleplayer

Firewatch
Shared: Adventure · First-Person · Exploration

Hollow Knight
Shared: Platformer · Exploration · Singleplayer

Fallout 4
Shared: Exploration · Singleplayer · Adventure

Hollow Knight: Silksong
Shared: Exploration · Singleplayer · Indie

Valley
Shared: Adventure · Exploration · First-Person

Portal 2
Shared: Singleplayer · First-Person · Platformer

The Long Dark
Shared: Exploration · Singleplayer · First-Person

A Story About My Uncle
Shared: Adventure · First-Person · Singleplayer

PEAK
Shared: Adventure · Exploration · First-Person

Antichamber
Shared: First-Person · Exploration · Singleplayer

The Witness
Shared: Exploration · First-Person · Singleplayer

Supraland
Shared: Exploration · Adventure · First-Person

Five Nights at Freddy's: Security Breach
Shared: Singleplayer · First-Person · Exploration

What Remains of Edith Finch
Shared: Exploration · First-Person · Adventure

Outer Wilds
Shared: Exploration · Adventure · Singleplayer

A Game About Digging A Hole
Shared: Exploration · Mining · Singleplayer

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

Tainted Grail: The Fall of Avalon
Shared: Adventure · First-Person · Exploration

FAR: Lone Sails
Shared: Adventure · Exploration · Singleplayer

Stray
Shared: Adventure · Exploration · Singleplayer

Lethal Company
Shared: First-Person · Exploration · PvE

FEZ
Shared: Exploration · Platformer · Adventure

NaissanceE
Shared: Exploration · First-Person · Adventure