Games like Vector 2147
Games like Vector 2147 include Disco Elysium - The Final Cut, Strange Horticulture, Chants of Sennaar, Blacksad: Under the Skin, and The Forgotten City. We matched them by the tags players give Vector 2147 on Steam (Bullet Hell, Point & Click, Exploration, Puzzle, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Disco Elysium - The Final Cut
Shared: Choices Matter · RPG · Point & Click

Strange Horticulture
Shared: Puzzle · Point & Click · Exploration

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

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

The Forgotten City
Shared: Exploration · Adventure · Choices Matter

The Wolf Among Us
Shared: Adventure · Choices Matter · Multiple Endings

Detroit: Become Human
Shared: Choices Matter · Multiple Endings · Adventure

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

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

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Adventure · Choices Matter

Fallout 4
Shared: Exploration · Adventure · RPG

OneShot
Shared: Puzzle · Choices Matter · Adventure

The Talos Principle
Shared: Puzzle · Sci-fi · Exploration

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Assassin's Creed® Odyssey
Shared: Exploration · RPG · Action-Adventure

Hogwarts Legacy
Shared: Adventure · Exploration · RPG

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

Sherlock Holmes: Crimes and Punishments
Shared: Adventure · Puzzle · Point & Click

Endacopia
Shared: Point & Click · Adventure · Puzzle

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Puzzle · Detective

Rise of the Tomb Raider™
Shared: Adventure · Exploration · Puzzle

STAR WARS Jedi: Fallen Order™
Shared: Exploration · Action-Adventure · Sci-fi

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

Undertale
Shared: Choices Matter · Multiple Endings · RPG