Games like Lonely Turret 2
Games like Lonely Turret 2 include Vampire Survivors, Megabonk, Death Must Die, Skul: The Hero Slayer, and Boneraiser Minions. We matched them by the tags players give Lonely Turret 2 on Steam (Casual, Roguelite, Action, Tower Defense, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Roguelite · Bullet Hell · Action Roguelike

Megabonk
Shared: Roguelite · Action Roguelike · Bullet Hell

Death Must Die
Shared: Roguelite · Bullet Hell · Action Roguelike

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

Boneraiser Minions
Shared: Roguelite · Bullet Hell · Pixel Graphics

Halls of Torment
Shared: Roguelite · Bullet Hell · Action Roguelike

Rocket Rats
Shared: Casual · Roguelite · Bullet Hell

BALL x PIT
Shared: Roguelite · Action · Bullet Hell

20 Minutes Till Dawn
Shared: Roguelite · Bullet Hell · Action Roguelike

Dungreed
Shared: Roguelite · Action · Pixel Graphics

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

Hades
Shared: Roguelite · Action · Action Roguelike

Nuclear Throne
Shared: Pixel Graphics · Action Roguelike · Action

Noobs Want to Live
Shared: Bullet Hell · Action · Casual

Asgard's Fall — Viking Survivors
Shared: Roguelite · Casual · Bullet Hell

Seraph's Last Stand
Shared: Casual · Bullet Hell · Action Roguelike

Star of Providence
Shared: Roguelite · Bullet Hell · Action

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Pixel Graphics · Indie

UnderMine
Shared: Roguelite · Pixel Graphics · Action Roguelike

Dead Cells
Shared: Roguelite · Pixel Graphics · Action Roguelike

Timberman
Shared: Casual · Action · Pixel Graphics

ScourgeBringer
Shared: Action · Roguelite · Pixel Graphics

Rogue Legacy
Shared: Action · Action Roguelike · Indie

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelite