Games like Lightning Fast
Games like Lightning Fast include The Isle, Last Oasis, Rust, Don't Starve Together, and Once Human. We matched them by the tags players give Lightning Fast on Steam (Adventure, Simulation, Survival, Massively Multiplayer, and Action): closest matches first, and among equally close ones the better-known games.

The Isle
Shared: Survival · Simulation · Open World

Last Oasis
Shared: Survival · Massively Multiplayer · Adventure

Rust
Shared: Survival · Adventure · Open World

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

Once Human
Shared: Survival · Open World · Action

SCUM
Shared: Survival · Massively Multiplayer · Open World

Dark and Light
Shared: Survival · Massively Multiplayer · Adventure

Conan Exiles Enhanced
Shared: Survival · Open World · Adventure

Beasts of Bermuda
Shared: Simulation · Survival · Adventure

Far Cry® Primal
Shared: Survival · Adventure · Action

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

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

The Forest
Shared: Survival · Adventure · Open World

EVE Online
Shared: Adventure · Simulation · Open World

ATLAS
Shared: Survival · Adventure · Massively Multiplayer

Hand Simulator: Survival
Shared: Adventure · Survival · Simulation

Don't Starve
Shared: Survival · Adventure · Indie

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

Miscreated
Shared: Survival · Open World · Massively Multiplayer

Kenshi
Shared: Survival · Open World · RPG

PixARK
Shared: Adventure · Survival · Massively Multiplayer

PUBG: BATTLEGROUNDS
Shared: Survival · Action · Adventure

The Elder Scrolls Online - Standard Edition
Shared: Adventure · RPG · Open World

DYSMANTLE
Shared: Survival · Adventure · Open World

