Games like Protocol Meltdown
Games like Protocol Meltdown include HELLDIVERS™ 2, Police Stories, Arma Reforger, ARC Raiders, and Plague Inc: Evolved. We matched them by the tags players give Protocol Meltdown on Steam (Simulation, PvE, Top-Down Shooter, Strategy, and Sci-fi): closest matches first, and among equally close ones the better-known games.

HELLDIVERS™ 2
Shared: PvE · Sci-fi · Shooter

Police Stories
Shared: Strategy · Simulation · Top-Down Shooter

Arma Reforger
Shared: Simulation · Shooter · Strategy

ARC Raiders
Shared: PvE · Multiplayer · Shooter

Plague Inc: Evolved
Shared: Simulation · Strategy · Zombies

Call to Arms - Gates of Hell: Ostfront
Shared: Strategy · Real Time Tactics · PvE

How to Fish
Shared: Multiplayer · Shooter · Co-op

Squad
Shared: PvE · Multiplayer · Shooter

HELLDIVERS™ Dive Harder Edition
Shared: Top-Down Shooter · Sci-fi · Co-op

PUBG: BATTLEGROUNDS
Shared: Shooter · Multiplayer · Strategy

Arma 3
Shared: Simulation · Shooter · Multiplayer

The Escapists 2
Shared: Strategy · Simulation · Multiplayer

World War Z
Shared: Zombies · PvE · Multiplayer

Call of Duty®: Black Ops III
Shared: Zombies · Shooter · Multiplayer

Door Kickers
Shared: Simulation · Strategy · Indie

Back 4 Blood
Shared: Zombies · Multiplayer · Shooter

PAYDAY 2
Shared: Co-op · Multiplayer · Action

Barotrauma
Shared: Simulation · Multiplayer · Co-op

Warhammer 40,000: Space Marine 2
Shared: PvE · Multiplayer · Sci-fi

Starship Troopers: Extermination
Shared: Sci-fi · PvE · Online Co-Op

OPERATOR
Shared: Simulation · PvE · Shooter

Schedule I
Shared: Simulation · Multiplayer · Co-op

Killing Floor 3
Shared: PvE · Zombies · Shooter

Natural Selection 2
Shared: Strategy · Sci-fi · Multiplayer