Games like Iron Guard
Games like Iron Guard include Plants vs. Zombies GOTY Edition, Kingdom Rush - Tower Defense, Bloons TD 6, Kingdom Rush Origins - Tower Defense, and Relic Guardian - Tower Defense. We matched them by the tags players give Iron Guard on Steam (Strategy, Casual, Tower Defense, Point & Click, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

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

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

Bloons TD 6
Shared: Strategy · Tower Defense · Casual

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

Relic Guardian - Tower Defense
Shared: Strategy · Tower Defense · Pixel Graphics

Zero Stress King: Idle Defense
Shared: Tower Defense · Strategy · Casual

Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · Tower Defense · 2D

Shelldiver
Shared: Casual · 2D · Strategy

Dungeon Warfare
Shared: Strategy · Tower Defense · Pixel Graphics

Minimalist Tower Defense
Shared: Strategy · Tower Defense · 2D

Nodebuster
Shared: Casual · Strategy · 2D

Bloons TD 5
Shared: Strategy · Tower Defense · Casual

Cluckmech Oasis
Shared: Strategy · Tower Defense · Pixel Graphics

GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Top-Down

Cookie Clicker
Shared: Casual · Pixel Graphics · 2D

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Management

Unpacking
Shared: Casual · Pixel Graphics · Cute

Game Dev Tycoon
Shared: Strategy · Casual · 2D

Digseum
Shared: Casual · Pixel Graphics · Point & Click

911 Operator
Shared: Strategy · Casual · Real Time Tactics

Tangy TD
Shared: Strategy · Tower Defense · 2D

Tower Wizard
Shared: Strategy · 2D · Pixel Graphics

Total War: WARHAMMER III
Shared: Strategy · Real Time Tactics · Fantasy

Marisa!ReturnTheBook!
Shared: Casual · Pixel Graphics · Strategy