Games like Arcane Investigations
Games like Arcane Investigations include Tangle Tower, Phoenix Wright: Ace Attorney Trilogy, No Case Should Remain Unsolved, The Mermaid Mask, and Machinarium. We matched them by the tags players give Arcane Investigations on Steam (Visual Novel, Detective, Puzzle, Point & Click, and Funny): closest matches first, and among equally close ones the better-known games.

Tangle Tower
Shared: Detective · Puzzle · Point & Click

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Detective · Story Rich

No Case Should Remain Unsolved
Shared: Puzzle · Visual Novel · Point & Click

The Mermaid Mask
Shared: Detective · Puzzle · Point & Click

Machinarium
Shared: Puzzle · Point & Click · Hand-drawn

Lost in Play
Shared: Puzzle · Point & Click · Funny

There Is No Game: Wrong Dimension
Shared: Puzzle · Point & Click · Funny

Sanfu
Shared: Puzzle · Visual Novel · 2D

Detective Grimoire
Shared: Point & Click · Puzzle · Detective

Storyteller
Shared: Puzzle · Point & Click · 2D

Hidden Folks
Shared: Puzzle · Hand-drawn · Point & Click

Return to Monkey Island
Shared: Point & Click · Puzzle · Funny

Deponia
Shared: Point & Click · Puzzle · Funny

Gorogoa
Shared: Puzzle · Hand-drawn · Point & Click

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Detective · Story Rich

The Wolf Among Us
Shared: Detective · Visual Novel · Story Rich

Carto
Shared: Puzzle · Hand-drawn · Cute

Duck Detective: The Secret Salami
Shared: Detective · Cute · Point & Click

The White Door
Shared: Puzzle · Detective · Point & Click

The Crown of Leaves
Shared: Visual Novel · Point & Click · Story Rich

CHUCHEL
Shared: Point & Click · Funny · 2D

Disco Elysium - The Final Cut
Shared: Detective · Story Rich · Point & Click

The Darkside Detective
Shared: Detective · Point & Click · Funny

Otaku's Adventure
Shared: Visual Novel · Funny · Puzzle