Games like Kaisuo
Games like Kaisuo include Obduction, Outer Wilds, Firewatch, The Witness, and Moncage. We matched them by the tags players give Kaisuo on Steam (Free to Play, Adventure, Exploration, Puzzle, and Surreal): closest matches first, and among equally close ones the better-known games.

Obduction
Shared: Adventure · Exploration · Puzzle

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Firewatch
Shared: Adventure · Atmospheric · Exploration

The Witness
Shared: Exploration · Puzzle · Adventure

Moncage
Shared: Puzzle · Adventure · Surreal

Samsara Room
Shared: Adventure · Free to Play · Puzzle

Stray
Shared: Adventure · Exploration · Atmospheric

Riven
Shared: Adventure · Puzzle · Exploration

NaissanceE
Shared: Exploration · Adventure · Atmospheric

Where Winds Meet
Shared: Free to Play · Adventure · Atmospheric

We Were Here
Shared: Free to Play · Puzzle · Adventure

What Remains of Edith Finch
Shared: Exploration · Adventure · Atmospheric

Antichamber
Shared: Puzzle · Exploration · Surreal

The Unfinished Swan
Shared: Adventure · Exploration · Puzzle

Journey
Shared: Adventure · Exploration · Atmospheric

MIND: Path to Thalamus Enhanced Edition
Shared: Adventure · Puzzle · Surreal

Spirit of the North
Shared: Adventure · Exploration · Puzzle

Kairo
Shared: Exploration · Puzzle · Adventure

Poppy Playtime
Shared: Free to Play · Puzzle · Adventure

COCOON
Shared: Adventure · Exploration · Puzzle

FAR: Lone Sails
Shared: Adventure · Exploration · Atmospheric

Blue Prince
Shared: Puzzle · Exploration · Adventure

Chants of Sennaar
Shared: Adventure · Puzzle · Indie

Call of the Sea
Shared: Adventure · Puzzle · Exploration