Games like Iselin Saga
Games like Iselin Saga include The House of Da Vinci, The Room 4: Old Sins, Chants of Sennaar, Morphopolis, and Enigmatis: The Ghosts of Maple Creek. We matched them by the tags players give Iselin Saga on Steam (Exploration, Hidden Object, Puzzle, Point & Click, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

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

The Room 4: Old Sins
Shared: Puzzle · Point & Click · Hidden Object

Chants of Sennaar
Shared: Puzzle · Point & Click · Exploration

Morphopolis
Shared: Puzzle · Hidden Object · Point & Click

Enigmatis: The Ghosts of Maple Creek
Shared: Hidden Object · Point & Click · Puzzle

True Fear: Forsaken Souls Part 1
Shared: Exploration · Hidden Object · Point & Click

Tangle Tower
Shared: Exploration · Puzzle · Point & Click

Monument Valley
Shared: Puzzle · Exploration · Female Protagonist

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

Enigmatis 2: The Mists of Ravenwood
Shared: Hidden Object · Puzzle · Point & Click

Milo and the Magpies
Shared: Hidden Object · Point & Click · Exploration

Syberia: The World Before
Shared: Point & Click · Exploration · Puzzle

Carto
Shared: Exploration · Puzzle · Female Protagonist

Sizeable
Shared: Hidden Object · Puzzle · Exploration

Enigmatis 3: The Shadow of Karkhala
Shared: Hidden Object · Point & Click · Puzzle

The Room
Shared: Puzzle · Point & Click · Hidden Object

Lost in Play
Shared: Puzzle · Point & Click · 2D

When The Past Was Around
Shared: Hidden Object · Female Protagonist · Puzzle

The House of Da Vinci 3
Shared: Hidden Object · Exploration · Puzzle

Murders on the Yangtze River
Shared: Puzzle · Exploration · Detective

Silence
Shared: Point & Click · Puzzle · Exploration

Hidden Folks
Shared: Hidden Object · Puzzle · Point & Click

The Silent Age
Shared: Point & Click · Puzzle · Exploration

Boxes: Lost Fragments
Shared: Puzzle · Point & Click · Hidden Object