Games like Zombie Serial Killer Incident
Games like Zombie Serial Killer Incident include Zuma Deluxe, 12 is Better Than 6, Zup! S, Puyo Puyo™Tetris®, and I, Zombie. We matched them by the tags players give Zombie Serial Killer Incident on Steam (Top-Down Shooter, Puzzle, Shooter, Arcade, and 2D): closest matches first, and among equally close ones the better-known games.

Zuma Deluxe
Shared: Puzzle · Arcade · 2D

12 is Better Than 6
Shared: Shooter · Top-Down Shooter · Action

Zup! S
Shared: Puzzle · 2D · Casual

Puyo Puyo™Tetris®
Shared: Puzzle · Cute · Casual

I, Zombie
Shared: Puzzle · Top-Down · Cute

Escape From Duckov
Shared: Top-Down Shooter · Shooter · Action

Alien Shooter
Shared: Shooter · Action · Top-Down

Puyo Puyo™ Tetris® 2
Shared: Puzzle · Arcade · Cute

Cat Goes Fishing
Shared: 2D · Cute · Casual

Resident Evil 2
Shared: Horror · Puzzle · Zombies

Peggle Deluxe
Shared: Puzzle · Arcade · 2D

Turnip Boy Commits Tax Evasion
Shared: Puzzle · Top-Down · Cute

OMG Zombies!
Shared: Puzzle · Arcade · Shooter

Pikuniku
Shared: Puzzle · Cute · Casual

Baba Is You
Shared: Puzzle · Cute · 2D

BALL x PIT
Shared: Arcade · Top-Down Shooter · Action

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

Halo: Spartan Assault
Shared: Top-Down Shooter · Shooter · Action

Firework
Shared: Puzzle · 2D · Horror

Left 4 Dead 2
Shared: Shooter · Action · Zombies

Zup!
Shared: Puzzle · 2D · Casual

Is This Seat Taken?
Shared: Puzzle · Cute · Casual

Zuma's Revenge!
Shared: Puzzle · Arcade · Action

Zup! 2
Shared: Puzzle · 2D · Casual