Games like Gensokyo Defenders
Games like Gensokyo Defenders include Bloons TD 6, Orcs Must Die! 2, Bloons TD 5, Orcs Must Die! 3, and Sanctum 2. We matched them by the tags players give Gensokyo Defenders on Steam (Action, Strategy, Tower Defense, Faith, and Anime): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

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

Bloons TD 5
Shared: Strategy · Tower Defense · Action

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

Sanctum 2
Shared: Tower Defense · Strategy · Action

Dungeon Defenders
Shared: Tower Defense · Strategy · Singleplayer

永远消失的幻想乡 ~ The Disappearing of Gensokyo
Shared: Anime · Action · Faith

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

Monster Hunter Wilds
Shared: Action · Co-op · Online Co-Op

Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Action

Granblue Fantasy: Relink
Shared: Anime · Action · Online Co-Op

MONSTER HUNTER RISE
Shared: Action · Co-op · Singleplayer

Sanctum
Shared: Tower Defense · Strategy · Action

DRAGON BALL XENOVERSE
Shared: Action · Anime · Co-op

Total War: WARHAMMER II
Shared: Strategy · Action · Fantasy

PAYDAY 2
Shared: Action · Co-op · Multiplayer

NARUTO SHIPPUDEN: Ultimate Ninja STORM 4
Shared: Action · Anime · Singleplayer

Dungeon Defenders: Awakened
Shared: Tower Defense · Strategy · Co-op

Deathtrap
Shared: Action · Tower Defense · Strategy

Monster Hunter: World
Shared: Action · Co-op · Multiplayer

100% Orange Juice
Shared: Anime · Strategy · Cute

Orcs Must Die! Deathtrap
Shared: Tower Defense · Action · Strategy

DRAGON BALL XENOVERSE 2
Shared: Action · Anime · Co-op

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Action · Faith · Bullet Hell