Games like Celestia's Light
Games like Celestia's Light include Potion Craft: Alchemist Simulator, Kingdom Rush - Tower Defense, Plants vs. Zombies GOTY Edition, Kingdom Rush Origins - Tower Defense, and Ratropolis. We matched them by the tags players give Celestia's Light on Steam (Casual, 2D Platformer, Card Battler, 2D, and Medieval): closest matches first, and among equally close ones the better-known games.

Potion Craft: Alchemist Simulator
Shared: Singleplayer · Medieval · 2D

Kingdom Rush - Tower Defense
Shared: 2D · Casual · Singleplayer

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

Kingdom Rush Origins - Tower Defense
Shared: 2D · Casual · Singleplayer

Ratropolis
Shared: 2D · Card Battler · Singleplayer

Ballionaire
Shared: Casual · 2D · Singleplayer

Peggle Deluxe
Shared: Casual · 2D · Singleplayer

Endgame of Devil
Shared: Casual · Card Battler · Singleplayer

Castle Crashers®
Shared: 2D · Casual · Singleplayer

Zup! S
Shared: Casual · 2D · Singleplayer

Braid
Shared: 2D Platformer · 2D · Singleplayer

Sonic Superstars
Shared: 2D Platformer · Casual · 2D

Vampire Survivors
Shared: 2D · Casual · Singleplayer

Bloons TD 6
Shared: Casual · Singleplayer · 2D

Brawlhalla
Shared: 2D Platformer · Casual · Singleplayer

Oriental Dynasty - Silk Road defense war
Shared: Casual · 2D · 2D Platformer

Game Dev Tycoon
Shared: Casual · Singleplayer · 2D

Melvor Idle
Shared: Casual · Singleplayer · 2D

Momoka (wo) Wasshoi
Shared: Casual · 2D Platformer · 2D

Balatro
Shared: Singleplayer · Casual · Card Battler

DAVE THE DIVER
Shared: Casual · Singleplayer · 2D

Ninja Kiwi Archive
Shared: Casual · Singleplayer · 2D Platformer

Thank Goodness You're Here!
Shared: Casual · 2D Platformer · 2D

Sonic Origins
Shared: 2D Platformer · Casual · 2D