Games like The 99
Games like The 99 include Zup! S, Baba Is You, LYNE, Hook, and Hexcells Infinite. We matched them by the tags players give The 99 on Steam (Casual, Early Access, Puzzle, Difficult, and Minimalist): closest matches first, and among equally close ones the better-known games.

Zup! S
Shared: Casual · Puzzle · Singleplayer

Baba Is You
Shared: Puzzle · Difficult · Singleplayer

LYNE
Shared: Puzzle · Casual · Minimalist

Hook
Shared: Casual · Puzzle · Minimalist

Hexcells Infinite
Shared: Casual · Puzzle · Minimalist

Hexcells
Shared: Casual · Puzzle · Minimalist

Mini Metro
Shared: Puzzle · Minimalist · Casual

Patrick's Parabox
Shared: Puzzle · Minimalist · Singleplayer

Hexcells Plus
Shared: Casual · Puzzle · Singleplayer

Mini Motorways
Shared: Casual · Puzzle · Minimalist

Peggle Deluxe
Shared: Casual · Puzzle · Singleplayer

Circuits
Shared: Puzzle · Casual · Minimalist

14 Minesweeper Variants
Shared: Puzzle · Casual · Minimalist

Wayout
Shared: Casual · Puzzle · Difficult

klocki
Shared: Casual · Puzzle · Minimalist

qop
Shared: Casual · Puzzle · Minimalist

Zup! X
Shared: Casual · Puzzle · Minimalist

Zup!
Shared: Casual · Puzzle · Minimalist

hocus
Shared: Casual · Puzzle · Minimalist

Zuma's Revenge!
Shared: Casual · Puzzle · Singleplayer

Zup! F
Shared: Casual · Puzzle · Minimalist

Zenge
Shared: Casual · Puzzle · Minimalist

Tricky Towers
Shared: Puzzle · Casual · Party Game

Zup! 2
Shared: Casual · Puzzle · Minimalist