Games like Enchantment Siege
Games like Enchantment Siege include Thronefall, Orcs Must Die! 3, Kingdom Two Crowns, Bee Island, and Buckshot Roulette. We matched them by the tags players give Enchantment Siege on Steam (Action, Tower Defense, Top-Down Shooter, 3D, and Minimalist): closest matches first, and among equally close ones the better-known games.

Thronefall
Shared: Tower Defense · Action · Minimalist

Orcs Must Die! 3
Shared: Tower Defense · Action · 3D

Kingdom Two Crowns
Shared: Tower Defense · Minimalist · Base Building

Bee Island
Shared: Tower Defense · Minimalist · Action

Buckshot Roulette
Shared: Dark · 3D · Indie

ARMORED CORE™ VI FIRES OF RUBICON™
Shared: Action · Character Customization · 3D

Taur
Shared: Tower Defense · Action · Indie

Rogue Tower
Shared: Tower Defense · 3D · Minimalist

Bloons TD 6
Shared: Tower Defense · 3D · Multiplayer

Orcs Must Die!
Shared: Action · Tower Defense · Indie

X-Morph: Defense
Shared: Tower Defense · Action · Indie

ARK: Survival Ascended
Shared: Action · Base Building · Indie

The Riftbreaker
Shared: Tower Defense · Base Building · Action

MONSTER HUNTER RISE
Shared: Action · Character Customization · Multiplayer

Dungeon Defenders
Shared: Tower Defense · Action · Character Customization

Orcs Must Die! 2
Shared: Tower Defense · Action · Indie

ATLYSS
Shared: Action · Character Customization · 3D

RUNNING WITH RIFLES
Shared: Action · Top-Down Shooter · Indie

Nine Parchments
Shared: Top-Down Shooter · Action · Magic

Black Myth: Wukong
Shared: Action · Combat · 3D

Warhammer 40,000: Space Marine 2
Shared: Action · PvE · 3D

The Outlast Trials
Shared: Action · Dark · Character Customization

Starship Troopers: Extermination
Shared: Action · Combat · Indie

Legion TD 2 - Multiplayer Tower Defense
Shared: Tower Defense · Base Building · Multiplayer