Games like Relax It's Aqua
Games like Relax It's Aqua include Sizeable, The House of Da Vinci, Moncage, Big Walk, and Spirit of the North. We matched them by the tags players give Relax It's Aqua on Steam (Hidden Object, Puzzle, Exploration, Adventure, and Minimalist): closest matches first, and among equally close ones the better-known games.

Sizeable
Shared: Puzzle · Hidden Object · Casual

The House of Da Vinci
Shared: Hidden Object · Puzzle · Exploration

Moncage
Shared: Puzzle · Casual · Adventure

Big Walk
Shared: Puzzle · Exploration · Adventure

Spirit of the North
Shared: Exploration · Puzzle · Adventure

The Room
Shared: Puzzle · Hidden Object · Adventure

Stray
Shared: Adventure · Exploration · Atmospheric

The Witness
Shared: Puzzle · Exploration · Atmospheric

The Exit 8
Shared: Puzzle · Exploration · Walking Simulator

Boxes: Lost Fragments
Shared: Puzzle · Adventure · Hidden Object

Morphopolis
Shared: Puzzle · Hidden Object · Adventure

Quern - Undying Thoughts
Shared: Puzzle · Adventure · Exploration

Platform 8
Shared: Adventure · Puzzle · Hidden Object

Journey
Shared: Adventure · Exploration · Atmospheric

The Unfinished Swan
Shared: Puzzle · Adventure · Exploration

The Room 4: Old Sins
Shared: Puzzle · Adventure · Hidden Object

TOEM: A Photo Adventure
Shared: Puzzle · Adventure · Exploration

Firewatch
Shared: Adventure · Atmospheric · Exploration

Outer Wilds
Shared: Exploration · Adventure · Puzzle

COCOON
Shared: Puzzle · Adventure · Exploration

The Room Two
Shared: Puzzle · Hidden Object · Adventure

Riven
Shared: Puzzle · Exploration · Adventure

Chants of Sennaar
Shared: Puzzle · Adventure · Atmospheric

FAR: Lone Sails
Shared: Adventure · Exploration · Atmospheric