Games like Hey! Here are some letters
Games like Hey! Here are some letters include Zup! S, Hexcells, Hexcells Infinite, Baba Is You, and Hook. We matched them by the tags players give Hey! Here are some letters on Steam (Casual, Puzzle, Spelling, Minimalist, and Logic): closest matches first, and among equally close ones the better-known games.

Zup! S
Shared: Casual · Puzzle · Indie

Hexcells
Shared: Casual · Puzzle · Logic

Hexcells Infinite
Shared: Casual · Puzzle · Logic

Baba Is You
Shared: Puzzle · Indie · Logic

Hook
Shared: Casual · Puzzle · Minimalist

LYNE
Shared: Puzzle · Minimalist · Logic

klocki
Shared: Puzzle · Casual · Minimalist

Hexcells Plus
Shared: Puzzle · Casual · Logic

Patrick's Parabox
Shared: Puzzle · Minimalist · Logic

Mini Motorways
Shared: Casual · Puzzle · Minimalist

Delete
Shared: Casual · Puzzle · Minimalist

Strange Jigsaws
Shared: Casual · Puzzle · Logic

Mini Metro
Shared: Puzzle · Minimalist · Casual

SquareCells
Shared: Puzzle · Casual · Minimalist

Zup!
Shared: Casual · Puzzle · Indie

14 Minesweeper Variants
Shared: Puzzle · Casual · Minimalist

Zup! F
Shared: Casual · Puzzle · Indie

Zup! 2
Shared: Casual · Puzzle · Indie

Zup! X
Shared: Casual · Puzzle · Indie

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

Zenge
Shared: Puzzle · Casual · Minimalist

Zup! 3
Shared: Casual · Puzzle · Indie

Zup! 4
Shared: Casual · Puzzle · Indie

Little Inferno
Shared: Casual · Puzzle · Indie