Games like True Abstraction Plus
Games like True Abstraction Plus include Portal, BioShock Infinite, The Talos Principle, Resident Evil 7 Biohazard, and Portal 2. We matched them by the tags players give True Abstraction Plus on Steam (Action, Puzzle, First-Person, Atmospheric, and Logic): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · First-Person · Action

BioShock Infinite
Shared: Action · First-Person · Atmospheric

The Talos Principle
Shared: Puzzle · First-Person · Atmospheric

Resident Evil 7 Biohazard
Shared: First-Person · Atmospheric · Action

Portal 2
Shared: Puzzle · First-Person · Action

Grand Theft Auto V Legacy
Shared: Action · First-Person · Atmospheric

Black Mesa
Shared: Action · First-Person · Atmospheric

Dishonored
Shared: First-Person · Action · Atmospheric

Half-Life 2
Shared: Action · First-Person · Atmospheric

Dishonored 2
Shared: Action · First-Person · Atmospheric

METRO Last Light Redux
Shared: Action · Atmospheric · First-Person

In Sound Mind
Shared: Puzzle · Action · Atmospheric

METRO 2033 Redux
Shared: Atmospheric · Action · First-Person

Poppy Playtime
Shared: Puzzle · First-Person · Atmospheric

Bendy and the Ink Machine
Shared: First-Person · Puzzle · Action

Outlast
Shared: First-Person · Atmospheric · Action

Resident Evil Village
Shared: First-Person · Action · Atmospheric

Crisol: Theater of Idols
Shared: First-Person · Action · Puzzle

BioShock™
Shared: Action · Atmospheric · First-Person

Superliminal
Shared: Puzzle · First-Person · Action

The Witness
Shared: Puzzle · First-Person · Atmospheric

Amnesia: The Dark Descent
Shared: Puzzle · Atmospheric · First-Person

SUPERHOT
Shared: Action · First-Person · Puzzle

Hello Neighbor 2
Shared: Puzzle · First-Person · Atmospheric