Games like nonogram
Games like nonogram include Hook, Zup! S, klocki, LYNE, and Hexcells. We matched them by the tags players give nonogram on Steam (Casual, Puzzle, 2D, Incremental, and Point & Click): closest matches first, and among equally close ones the better-known games.

Hook
Shared: Casual · Puzzle · Relaxing

Zup! S
Shared: Casual · Puzzle · 2D

klocki
Shared: Puzzle · Casual · Relaxing

LYNE
Shared: Puzzle · Casual · Relaxing

Hexcells
Shared: Casual · Puzzle · Logic

Zup! F
Shared: Casual · Puzzle · 2D

Zup!
Shared: Casual · Puzzle · 2D

Is This Seat Taken?
Shared: Casual · Puzzle · Relaxing

Glass Masquerade
Shared: Puzzle · Casual · Relaxing

Zup! 2
Shared: Casual · Puzzle · 2D

A Little to the Left
Shared: Puzzle · Casual · Relaxing

Zup! X
Shared: Casual · Puzzle · 2D

Strange Jigsaws
Shared: Casual · Puzzle · 2D

Hidden Folks
Shared: Casual · Puzzle · Point & Click

Zup! 3
Shared: Casual · Puzzle · 2D

Hexcells Infinite
Shared: Casual · Puzzle · Logic

Gorogoa
Shared: Puzzle · Casual · Indie

Zup! Zero
Shared: Casual · Puzzle · 2D

Zup! 8
Shared: Casual · Puzzle · 2D

The Room
Shared: Puzzle · Point & Click · Atmospheric

Zup! 5
Shared: Casual · Puzzle · 2D

Zup! Z
Shared: Puzzle · Casual · 2D

Patrick's Parabox
Shared: Puzzle · 2D · Minimalist

Zenge
Shared: Puzzle · Casual · Relaxing