Games like HexDefense
Games like HexDefense include Bloons TD 6, Rogue Tower, Wall World, Cluckmech Oasis, and Drill Core. We matched them by the tags players give HexDefense on Steam (Action, Strategy, Roguelike, Tower Defense, and Exploration): closest matches first, and among equally close ones the better-known games.

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

Rogue Tower
Shared: Strategy · Tower Defense · Roguelike

Wall World
Shared: Roguelite · Tower Defense · Roguelike

Cluckmech Oasis
Shared: Strategy · Roguelike · Tower Defense

Drill Core
Shared: Strategy · Tower Defense · Roguelite

Emberward
Shared: Strategy · Tower Defense · Roguelite

Megabonk
Shared: Roguelike · Roguelite · Action

Tangy TD
Shared: Strategy · Action · Tower Defense

Pizza Possum
Shared: Strategy · Exploration · 3D

Hades II
Shared: Action · Roguelike · Roguelite

Wall World 2
Shared: Roguelite · Tower Defense · Roguelike

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

Bloons TD 5
Shared: Strategy · Tower Defense · Action

Kingdom: New Lands
Shared: Tower Defense · Roguelike · Exploration

Hades
Shared: Action · Roguelite · Roguelike

Nordic Ashes: Survivors of Ragnarok
Shared: Exploration · Roguelike · Roguelite

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

Thronefall
Shared: Strategy · Tower Defense · Action

Heretic's Fork
Shared: Strategy · Tower Defense · Action

CloverPit
Shared: Roguelike · Strategy · Roguelite

Heat Signature
Shared: Action · Roguelike · Strategy

Nordhold
Shared: Strategy · Tower Defense · Roguelike

Tower Dominion
Shared: Strategy · Tower Defense · Roguelike

Octogeddon
Shared: Action · Strategy · Roguelike