Games like Hold The Door
Games like Hold The Door include Plants vs. Zombies GOTY Edition, Bloons TD 6, Rise to Ruins, Kingdom Rush 5: Alliance TD, and Kingdom Rush - Tower Defense. We matched them by the tags players give Hold The Door on Steam (Tower Defense, Strategy, 2D, Isometric, and Base Building): closest matches first, and among equally close ones the better-known games.

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · 2D

Bloons TD 6
Shared: Tower Defense · Strategy · Singleplayer

Rise to Ruins
Shared: Tower Defense · Strategy · Base Building

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · 2D

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

Rogue Tower
Shared: Tower Defense · Strategy · Procedural Generation

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

RimWorld
Shared: Strategy · Base Building · Singleplayer

Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · Indie

Dungeon Warfare
Shared: Tower Defense · Strategy · 2D

Mindustry
Shared: Tower Defense · Base Building · Strategy

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

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

The Escapists
Shared: Strategy · 2D · Pixel Graphics

Super Sanctum TD
Shared: Tower Defense · Strategy · Isometric

Wall World
Shared: Tower Defense · Strategy · Pixel Graphics

Thronefall
Shared: Tower Defense · Strategy · Base Building

Stoneshard
Shared: Strategy · Pixel Graphics · 2D

Dungeon of the ENDLESS™
Shared: Strategy · Tower Defense · Pixel Graphics

Rusted Warfare - RTS
Shared: Strategy · Base Building · 2D

Grim Nights
Shared: Tower Defense · Strategy · 2D

Tower Dominion
Shared: Tower Defense · Strategy · Base Building

They Are Billions
Shared: Strategy · Base Building · Tower Defense

Oxygen Not Included
Shared: Base Building · 2D · Singleplayer