Games like Spell Sweeper
Games like Spell Sweeper include Peggle Deluxe, Scribblenauts Unlimited, Zup! S, Librarian: Tidy Up the Arcane Library!, and Storyteller. We matched them by the tags players give Spell Sweeper on Steam (Casual, Puzzle, Singleplayer, Fantasy, and 3D): closest matches first, and among equally close ones the better-known games.

Peggle Deluxe
Shared: Casual · Puzzle · Singleplayer

Scribblenauts Unlimited
Shared: Casual · Puzzle · Singleplayer

Zup! S
Shared: Casual · Puzzle · 2D

Librarian: Tidy Up the Arcane Library!
Shared: Casual · Singleplayer · Puzzle

Storyteller
Shared: Puzzle · 2D · Fantasy

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

Bloons TD 6
Shared: Singleplayer · Casual · 3D

Monument Valley
Shared: Puzzle · Casual · Singleplayer

Kingdom Rush - Tower Defense
Shared: Singleplayer · Casual · Fantasy

Sizeable
Shared: Casual · Puzzle · Singleplayer

Gorogoa
Shared: Puzzle · Singleplayer · Casual

Peggle™ Nights
Shared: Casual · Puzzle · Singleplayer

Hook
Shared: Casual · Puzzle · Singleplayer

Zup!
Shared: Casual · Puzzle · 2D

Hexcells
Shared: Casual · Puzzle · Singleplayer

Moncage
Shared: Casual · Puzzle · Singleplayer

Zup! 2
Shared: Casual · Puzzle · 2D

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

Zup! F
Shared: Casual · Puzzle · 2D

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

Bejeweled® 3
Shared: Casual · Puzzle · Singleplayer

Zup! X
Shared: Casual · Puzzle · 2D

World of Goo
Shared: Puzzle · Singleplayer · Casual

Strange Jigsaws
Shared: Casual · Puzzle · 2D