Games like Zombiepede
Games like Zombiepede include PUBG: BATTLEGROUNDS, Left 4 Dead 2, THE FINALS, Delta Force, and Counter-Strike: Source. We matched them by the tags players give Zombiepede on Steam (Co-op Campaign, Arena Shooter, Team-Based, Gun Customization, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Survival · Shooter · PvP

Left 4 Dead 2
Shared: Shooter · Survival · Team-Based

THE FINALS
Shared: Team-Based · Shooter · Arena Shooter

Delta Force
Shared: Gun Customization · Shooter · Singleplayer

Counter-Strike: Source
Shared: Team-Based · Shooter · Action

Apex Legends™
Shared: Shooter · Team-Based · Action

MADNESS: Project Nexus
Shared: Arena Shooter · Gun Customization · Shooter

Deployment
Shared: Arena Shooter · Twin Stick Shooter · Top-Down Shooter

HELLDIVERS™ Dive Harder Edition
Shared: Twin Stick Shooter · Top-Down Shooter · 4 Player Local

Battlefield 3™
Shared: Team-Based · Shooter · Singleplayer

Road to Vostok
Shared: Survival · Gun Customization · Singleplayer

Depth
Shared: Team-Based · Shooter · Survival

Paladins®
Shared: Team-Based · Shooter · Action

Project Winter
Shared: Team-Based · Survival · Controller

Battlefield™ 2042
Shared: Shooter · Team-Based · Singleplayer

Call of Duty®: Black Ops II
Shared: Shooter · Team-Based · Singleplayer

Apewar
Shared: Arena Shooter · Team-Based · Shooter

SYNTHETIK 2
Shared: Twin Stick Shooter · Top-Down Shooter · Shooter

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

Shotgun Farmers
Shared: Team-Based · Shooter · Arena Shooter

Brotato
Shared: Arena Shooter · Survival · Singleplayer

HYPERCHARGE: Unboxed
Shared: Co-op Campaign · Singleplayer · Shooter

Counter-Strike
Shared: Team-Based · Shooter · Action

PAYDAY 2
Shared: Team-Based · Action · Shooter