Games like Explodey Towers
Games like Explodey Towers include Vampire Survivors, Kingdom Rush - Tower Defense, BALL x PIT, Megabonk, and Enter the Gungeon. We matched them by the tags players give Explodey Towers on Steam (Bullet Hell, Auto Battler, Tower Defense, Action, and Medieval): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · 2D

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

BALL x PIT
Shared: Bullet Hell · Action · Arcade

Megabonk
Shared: Bullet Hell · Roguelike · Action

Enter the Gungeon
Shared: Bullet Hell · Roguelike · Pixel Graphics

Thronefall
Shared: Tower Defense · Medieval · Action

Halls of Torment
Shared: Bullet Hell · Action · Roguelike

Kingdom Rush 6: Genesis TD
Shared: Tower Defense · Action · Medieval

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

Death Must Die
Shared: Bullet Hell · Action · Pixel Graphics

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

Rogue: Genesia
Shared: Bullet Hell · Arcade · PvE

The King is Watching
Shared: Tower Defense · Roguelike · Strategy

Skul: The Hero Slayer
Shared: Action · Roguelike · Pixel Graphics

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

Kingdom Rush Vengeance - Tower Defense
Shared: Tower Defense · Medieval · Strategy

Dome Keeper
Shared: Action · Tower Defense · Roguelike

Nomad Survival
Shared: Bullet Hell · Auto Battler · PvE

Tangy TD
Shared: Tower Defense · Action · Strategy

LUFTRAUSERS
Shared: Bullet Hell · Action · Arcade

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

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

Rogue Legacy
Shared: Action · Roguelike · 2D

Exit the Gungeon
Shared: Bullet Hell · Action · Arcade