Games like TesserAct
Games like TesserAct include Portal, Portal 2, Antichamber, Call of the Sea, and The Turing Test. We matched them by the tags players give TesserAct on Steam (Indie, Puzzle, Female Protagonist, and First-Person): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · First-Person · Female Protagonist

Portal 2
Shared: Puzzle · First-Person · Female Protagonist

Antichamber
Shared: Puzzle · Indie · First-Person

Call of the Sea
Shared: Puzzle · First-Person · Indie

The Turing Test
Shared: Puzzle · Female Protagonist · First-Person

Poppy Playtime
Shared: Puzzle · First-Person · Indie

The Witness
Shared: Puzzle · First-Person · Indie

Assemble with Care
Shared: Indie · Puzzle · Female Protagonist

Bright Memory: Infinite
Shared: Female Protagonist · Indie · First-Person

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

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

What Remains of Edith Finch
Shared: First-Person · Indie · Female Protagonist

GRIS
Shared: Indie · Female Protagonist · Puzzle

Contrast
Shared: Indie · Female Protagonist · Puzzle

Polarity
Shared: Puzzle · Indie · First-Person

Return of the Obra Dinn
Shared: Puzzle · Indie · First-Person

Shady Part of Me
Shared: Indie · Puzzle · Female Protagonist

Carto
Shared: Indie · Puzzle · Female Protagonist

Q.U.B.E. 2
Shared: Indie · Puzzle · First-Person

The Room
Shared: Puzzle · Indie · First-Person

NaissanceE
Shared: Indie · First-Person · Puzzle

Blue Prince
Shared: Puzzle · Indie · First-Person

CrossCode
Shared: Female Protagonist · Puzzle · Indie

Bright Memory
Shared: Female Protagonist · First-Person · Indie