Games like Blackout Tonight
Games like Blackout Tonight include The Silent Age, Carto, OneShot, Monument Valley, and Chants of Sennaar. We matched them by the tags players give Blackout Tonight on Steam (Exploration, Puzzle, Side Scroller, Point & Click, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

The Silent Age
Shared: Side Scroller · Point & Click · Puzzle

Carto
Shared: Puzzle · Exploration · Adventure

OneShot
Shared: Puzzle · Exploration · Adventure

Monument Valley
Shared: Puzzle · Exploration · Adventure

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

WILL: A Wonderful World / WILL:美好世界
Shared: Puzzle · Exploration · Adventure

THE LONGING
Shared: Point & Click · Exploration · 2D

Sable
Shared: Exploration · Female Protagonist · Adventure

Ib
Shared: Exploration · 2D · Puzzle

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

Storyteller
Shared: Puzzle · Point & Click · 2D

Strange Horticulture
Shared: Puzzle · Point & Click · Exploration

The Wolf Among Us
Shared: Adventure · Multiple Endings · Point & Click

The Henry Stickmin Collection
Shared: Multiple Endings · Choose Your Own Adventure · Point & Click

Tangle Tower
Shared: Puzzle · Exploration · Point & Click

Word Game
Shared: Exploration · Puzzle · 2D

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

Rise of the Tomb Raider™
Shared: Female Protagonist · Exploration · Adventure

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

HIVESWAP: ACT 1
Shared: Point & Click · Adventure · Female Protagonist

UNREAL LIFE
Shared: Side Scroller · Puzzle · Exploration

Hollow Knight: Silksong
Shared: Exploration · 2D · Female Protagonist

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

Blacksad: Under the Skin
Shared: Exploration · Puzzle · Point & Click