Games like Ascent
Games like Ascent include There Is No Game: Wrong Dimension, SANABI, Papers, Please, Minit, and Thimbleweed Park™. We matched them by the tags players give Ascent on Steam (Adventure, Puzzle, Perma Death, Minimalist, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Pixel Graphics

SANABI
Shared: Adventure · Pixel Graphics · 2D Platformer

Papers, Please
Shared: Puzzle · Pixel Graphics · Point & Click

Minit
Shared: Adventure · Minimalist · Puzzle

Thimbleweed Park™
Shared: Adventure · Puzzle · Pixel Graphics

The Rewinder
Shared: Adventure · Puzzle · Pixel Graphics

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

LIMBO
Shared: Puzzle · Adventure · Indie

Deponia
Shared: Adventure · Puzzle · Point & Click

Celeste
Shared: Pixel Graphics · 2D Platformer · Adventure

Strange Jigsaws
Shared: Adventure · Puzzle · Minimalist

OneShot
Shared: Puzzle · Pixel Graphics · Adventure

Moonleap
Shared: Puzzle · Minimalist · Adventure

Out There Somewhere
Shared: Puzzle · Adventure · Pixel Graphics

Webbed
Shared: 2D Platformer · Pixel Graphics · Adventure

Endacopia
Shared: Adventure · Puzzle · Point & Click

Samsara Room
Shared: Puzzle · Adventure · Indie

The Room
Shared: Puzzle · Adventure · Point & Click

Baba Is You
Shared: Puzzle · Pixel Graphics · Indie

Rusty Lake Paradise
Shared: Puzzle · Adventure · Point & Click

McPixel
Shared: Puzzle · Adventure · Pixel Graphics

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

FEZ
Shared: Puzzle · Adventure · Pixel Graphics

The Last Campfire
Shared: Adventure · Puzzle · Indie