Games like JCB Pioneer: Mars
Games like JCB Pioneer: Mars include The Forest, Feed and Grow: Fish, Once Human, Rust, and Space Engineers. We matched them by the tags players give JCB Pioneer: Mars on Steam (Early Access, Simulation, Action, Adventure, and Indie): closest matches first, and among equally close ones the better-known games.

The Forest
Shared: Survival · Adventure · Building

Feed and Grow: Fish
Shared: Simulation · Early Access · Action

Once Human
Shared: Action · Open World · Survival

Rust
Shared: Survival · Building · Adventure

Space Engineers
Shared: Simulation · Building · Survival

Empyrion - Galactic Survival
Shared: Simulation · Building · Survival

Terraria
Shared: Survival · Adventure · Building

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

ARK: Survival Evolved
Shared: Survival · Adventure · Building

The Isle
Shared: Simulation · Survival · Open World

Last Oasis
Shared: Action · Survival · Adventure

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

The Long Drive
Shared: Survival · Adventure · Open World

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

Core Keeper
Shared: Survival · Open World · Exploration

Drive Beyond Horizons
Shared: Simulation · Survival · Exploration

Raft
Shared: Survival · Building · Adventure

Conan Exiles Enhanced
Shared: Survival · Building · Open World

The Long Dark
Shared: Survival · Adventure · Exploration

Valheim
Shared: Survival · Building · Open World

ARK: Survival Ascended
Shared: Survival · Open World · Adventure

Starship EVO
Shared: Simulation · Action · Indie

Scrap Mechanic
Shared: Building · Survival · Open World

TerraTech
Shared: Building · Action · Open World