Games like Ladybugs and Storm
Games like Ladybugs and Storm include Subnautica, Subnautica: Below Zero, Subnautica 2, The Forest, and The Long Dark. We matched them by the tags players give Ladybugs and Storm on Steam (Survival, Underwater, Open World, Exploration, and Horror): closest matches first, and among equally close ones the better-known games.

Subnautica
Shared: Survival · Underwater · Open World

Subnautica: Below Zero
Shared: Survival · Underwater · Open World

Subnautica 2
Shared: Survival · Underwater · Horror

The Forest
Shared: Survival · Open World · Horror

The Long Dark
Shared: Survival · Open World · Exploration

Sons Of The Forest
Shared: Survival · Open World · Horror

ABZU
Shared: Underwater · Exploration · Atmospheric

Rain World
Shared: Survival · Exploration · Atmospheric

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

Feed and Grow: Fish
Shared: Underwater · Survival · Simulation

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

American Truck Simulator
Shared: Open World · Simulation · Exploration

Metro Exodus
Shared: Open World · Singleplayer · Survival

Ancestors: The Humankind Odyssey
Shared: Survival · Open World · Exploration

Euro Truck Simulator 2
Shared: Open World · Simulation · Exploration

The Long Drive
Shared: Survival · Open World · Exploration

Fallout 4
Shared: Open World · Exploration · Singleplayer

Stranded Deep
Shared: Survival · Open World · Exploration

Slime Rancher
Shared: Exploration · Open World · Singleplayer

7 Days to Die
Shared: Survival · Open World · Exploration

Don't Starve Together
Shared: Survival · Open World · Simulation

Forever Skies
Shared: Survival · Exploration · Singleplayer

DREDGE
Shared: Exploration · Open World · Atmospheric

DAVE THE DIVER
Shared: Exploration · Underwater · Singleplayer