Games like Tower of Doom
Games like Tower of Doom include Pistol Whip, PUBG: BATTLEGROUNDS, Escape From Duckov, Borderlands 2, and Pavlov. We matched them by the tags players give Tower of Doom on Steam (Action, Arcade, Shooter, Survival, and Gun Customization): closest matches first, and among equally close ones the better-known games.

Pistol Whip
Shared: Action · VR · Arcade

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

Escape From Duckov
Shared: Action · Shooter · Looter Shooter

Borderlands 2
Shared: Action · Shooter · Looter Shooter

Pavlov
Shared: VR · Action · Shooter

Bit Blaster XL
Shared: Arcade · Shooter · Bullet Hell

BONEWORKS
Shared: Action · VR · Shooter

Half-Life: Alyx
Shared: VR · Shooter · Action

PAYDAY 2
Shared: Action · Shooter · Looter Shooter

Into the Radius 2
Shared: VR · Survival · Shooter

Megabonk
Shared: Action · Bullet Hell · Survival

BALL x PIT
Shared: Action · Arcade · Bullet Hell

Hot Dogs, Horseshoes & Hand Grenades
Shared: VR · Shooter · Gun Customization

Road to Vostok
Shared: Survival · Shooter · Looter Shooter

Left 4 Dead 2
Shared: Action · Shooter · Survival

Project Wingman
Shared: Action · Arcade · VR

Ghosts of Tabor
Shared: Action · VR · Shooter

Nova Drift
Shared: Arcade · Bullet Hell · Shooter

Tom Clancy’s The Division™
Shared: Action · Shooter · Looter Shooter

SUPERHOT VR
Shared: VR · Shooter · Action

Call of Duty®: Black Ops III
Shared: Action · Shooter · Singleplayer

Planes, Bullets and Vodka
Shared: Action · Arcade · Shooter

Grand Theft Auto V Legacy
Shared: Action · Shooter · Singleplayer

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: VR · Action · Survival