Games like Impious Pumpkins
Games like Impious Pumpkins include Bloons TD 6, Zero Stress King: Idle Defense, Cookie Clicker, Plants vs. Zombies GOTY Edition, and Rogue Tower. We matched them by the tags players give Impious Pumpkins on Steam (Auto Battler, Tower Defense, Horror, Supernatural, and Idler): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Tower Defense · Strategy · Casual

Zero Stress King: Idle Defense
Shared: Tower Defense · Auto Battler · Idler

Cookie Clicker
Shared: Horror · Idler · Casual

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Casual

Rogue Tower
Shared: Tower Defense · Strategy · Casual

Legion TD 2 - Multiplayer Tower Defense
Shared: Tower Defense · Auto Battler · Strategy

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

Flash Doll
Shared: Auto Battler · Idler · Strategy

Thronefall
Shared: Tower Defense · Strategy · Auto Battler

Among Us 3D
Shared: Casual · Strategy · Horror

Pacify
Shared: Horror · Supernatural · Casual

Bloons TD 5
Shared: Tower Defense · Strategy · Casual

Creeper World 4
Shared: Tower Defense · Real Time Tactics · Strategy

Dice People
Shared: Auto Battler · Casual · Strategy

Phasmophobia
Shared: Horror · Supernatural · 3D

Tower Dominion
Shared: Tower Defense · Strategy · Auto Battler

Desktop Defender
Shared: Auto Battler · Tower Defense · Idler

Incremental Epic Hero 2
Shared: Auto Battler · Idler · Casual

Bad North: Jotunn Edition
Shared: Tower Defense · Real Time Tactics · Auto Battler

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · Casual

Northend Tower Defense
Shared: Tower Defense · Auto Battler · Strategy

Kingdom Rush Frontiers - Tower Defense
Shared: Tower Defense · Strategy · Casual

Buggos
Shared: Auto Battler · Tower Defense · Strategy

Element TD 2 - Tower Defense
Shared: Tower Defense · Real Time Tactics · Strategy