Games like Fractal Block World
Games like Fractal Block World include Fallout 4, Fallout: New Vegas, No Man's Sky, S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition, and Far Cry® 5. We matched them by the tags players give Fractal Block World on Steam (Exploration, Open World, Surreal, FPS, and Voxel): closest matches first, and among equally close ones the better-known games.

Fallout 4
Shared: Open World · Exploration · Adventure

Fallout: New Vegas
Shared: Open World · Exploration · FPS

No Man's Sky
Shared: Open World · Exploration · Space

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Open World · FPS · Exploration

Far Cry® 5
Shared: Open World · FPS · Exploration

Far Cry® 6
Shared: Open World · FPS · Exploration

Slime Rancher
Shared: Exploration · Open World · Adventure

Far Cry® 4
Shared: Open World · FPS · Adventure

Starfield
Shared: Open World · Exploration · First-Person

Elite Dangerous
Shared: Open World · Exploration · Space Sim

Far Cry 3
Shared: Open World · FPS · Adventure

Antichamber
Shared: Exploration · Surreal · Indie

Cyberpunk 2077
Shared: Open World · FPS · Exploration

Metro Exodus
Shared: Open World · FPS · First-Person

The Witness
Shared: Exploration · Open World · First-Person

Outer Wilds
Shared: Exploration · Open World · Adventure

Fallout 3
Shared: Open World · Exploration · First-Person

Far Cry® Primal
Shared: Open World · Exploration · First-Person

Tainted Grail: The Fall of Avalon
Shared: Open World · Exploration · Adventure

Lucid Blocks
Shared: Surreal · Open World · Psychedelic

Far Cry® 2
Shared: Open World · FPS · First-Person

Echo Point Nova
Shared: Exploration · FPS · First-Person

The Long Dark
Shared: Open World · Exploration · First-Person

Grand Theft Auto V Legacy
Shared: Open World · First-Person · Action