Games like Jump Zombie
Games like Jump Zombie include Chained Together, Pseudoregalia, Mirror 2: Project X, ATLYSS, and Goat Simulator. We matched them by the tags players give Jump Zombie on Steam (Casual, 3D Platformer, 3D, RPG, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Chained Together
Shared: Casual · Platformer · 3D Platformer

Pseudoregalia
Shared: 3D Platformer · 3D · Platformer

Mirror 2: Project X
Shared: 3D · Singleplayer · Casual

ATLYSS
Shared: RPG · 3D Platformer · 3D

Goat Simulator
Shared: Casual · Simulation · Singleplayer

Plague Inc: Evolved
Shared: Casual · Singleplayer · Simulation

Climber Animals: Together
Shared: Casual · 3D Platformer · Platformer

Sonic Adventure DX
Shared: 3D Platformer · Platformer · Singleplayer

ScooterFlow
Shared: 3D Platformer · Simulation · 3D

Mountain
Shared: Casual · Singleplayer · Indie

Only Climb: Better Together
Shared: 3D Platformer · Platformer · 3D

Sonic Frontiers
Shared: 3D Platformer · Singleplayer · 3D

Portal 2
Shared: Singleplayer · Platformer · 3D Platformer

Refunct
Shared: 3D Platformer · Casual · Platformer

Chinese Parents
Shared: Casual · RPG · Singleplayer

Yellow Taxi Goes Vroom
Shared: 3D Platformer · Singleplayer · 3D

FINAL FANTASY VII REMAKE INTERGRADE
Shared: RPG · Singleplayer · Third Person

Getting Over It with Bennett Foddy
Shared: Singleplayer · Casual · Platformer

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: 3D Platformer · Casual · Singleplayer

My Time at Portia
Shared: RPG · Casual · Singleplayer

ALTF4
Shared: 3D Platformer · Casual · Third Person

VHOLUME
Shared: 3D Platformer · Casual · Platformer

Neon White
Shared: 3D Platformer · Platformer · Singleplayer

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Singleplayer · Casual