Games like Merge Circus
Games like Merge Circus include Zuma Deluxe, Peggle Deluxe, Cat Goes Fishing, Donut County, and Is This Seat Taken?. We matched them by the tags players give Merge Circus on Steam (Casual, Arcade, Puzzle, Match 3, and 2D): closest matches first, and among equally close ones the better-known games.

Zuma Deluxe
Shared: Arcade · Puzzle · Match 3

Peggle Deluxe
Shared: Casual · Arcade · Puzzle

Cat Goes Fishing
Shared: 2D · Casual · Cute

Donut County
Shared: Casual · Puzzle · Cute

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

Zuma's Revenge!
Shared: Casual · Puzzle · Match 3

Zup! S
Shared: Casual · Puzzle · 2D

Bejeweled® 3
Shared: Casual · Puzzle · Match 3

Pikuniku
Shared: Casual · Puzzle · Cute

Zup!
Shared: Casual · Puzzle · 2D

Plants vs. Zombies GOTY Edition
Shared: Casual · 2D · Puzzle

Scribblenauts Unlimited
Shared: Casual · Puzzle · 2D

World of Goo
Shared: Puzzle · Casual · 2D

Puyo Puyo™ Tetris® 2
Shared: Casual · Puzzle · Arcade

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

Tricky Towers
Shared: Puzzle · Casual · Arcade

pureya
Shared: Arcade · Casual · 2D

Zup! F
Shared: Casual · Puzzle · 2D

Zup! X
Shared: Casual · Puzzle · 2D

Hidden Folks
Shared: Casual · Puzzle · 2D

A Dance of Fire and Ice
Shared: Arcade · 2D · Casual

Slime Rancher
Shared: Cute · Colorful · Casual

Progressbar95
Shared: Casual · Arcade · Puzzle

Zup! 2
Shared: Casual · Puzzle · 2D