Games like NecroLand: Undead Corps
Games like NecroLand: Undead Corps include PUBG: BATTLEGROUNDS, Left 4 Dead 2, Plague Inc: Evolved, ShellShock Live, and World War Z. We matched them by the tags players give NecroLand: Undead Corps on Steam (Action, Indie, Strategy, Battle Royale, and Multiplayer): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Battle Royale · Multiplayer · Action

Left 4 Dead 2
Shared: Zombies · Action · Multiplayer

Plague Inc: Evolved
Shared: Strategy · Indie · Multiplayer

ShellShock Live
Shared: Strategy · Action · Multiplayer

World War Z
Shared: Multiplayer · Action · Zombies

Project Zomboid
Shared: Zombies · Multiplayer · Indie

The Escapists 2
Shared: Strategy · Multiplayer · 2D

7 Days to Die
Shared: Multiplayer · Zombies · Post-apocalyptic

DayZ
Shared: Zombies · Multiplayer · Post-apocalyptic

Apex Legends™
Shared: Battle Royale · Multiplayer · Action

Awesomenauts
Shared: Action · Multiplayer · Indie

Left 4 Dead
Shared: Action · Zombies · Multiplayer

Killing Floor 2
Shared: Multiplayer · Zombies · Action

Broforce
Shared: Action · Indie · 2D

Bloons TD 6
Shared: Strategy · Multiplayer · Co-op

NARAKA: BLADEPOINT
Shared: Battle Royale · Action · Multiplayer

HELLDIVERS™ 2
Shared: Action · Multiplayer · PvE

Terraria
Shared: Multiplayer · 2D · Indie

Squad
Shared: Multiplayer · Action · PvP

Back 4 Blood
Shared: Zombies · Multiplayer · Action

Orcs Must Die! 2
Shared: Action · Strategy · Indie

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Multiplayer

ARC Raiders
Shared: Multiplayer · PvP · PvE

Don't Starve Together
Shared: Multiplayer · Indie · Co-op