Games like Isolation Edge
Games like Isolation Edge include 7 Days to Die, Project Zomboid, Terraria, The Riftbreaker, and Enshrouded. We matched them by the tags players give Isolation Edge on Steam (Survival, Zombies, Base Building, Isometric, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

7 Days to Die
Shared: Survival · Zombies · Base Building

Project Zomboid
Shared: Survival · Zombies · Sandbox

Terraria
Shared: Survival · Sandbox · Adventure

The Riftbreaker
Shared: Base Building · Survival · Sandbox

Enshrouded
Shared: Survival · Base Building · Adventure

Dune: Awakening
Shared: Survival · Base Building · Exploration

Valheim
Shared: Survival · Base Building · Building

ARK: Survival Evolved
Shared: Survival · Base Building · Adventure

ARK: Survival Ascended
Shared: Survival · Base Building · Adventure

The Forest
Shared: Survival · Adventure · Building

Sons Of The Forest
Shared: Survival · Base Building · Building

DYSMANTLE
Shared: Survival · Zombies · Base Building

Mist Survival
Shared: Survival · Zombies · Base Building

Scrap Mechanic
Shared: Survival · Sandbox · Base Building

Raft
Shared: Survival · Base Building · Adventure

Rust
Shared: Survival · Sandbox · Adventure

SurrounDead
Shared: Survival · Zombies · Singleplayer

HumanitZ
Shared: Survival · Zombies · Base Building

Escape From Duckov
Shared: Adventure · Top-Down Shooter · Survival

Core Keeper
Shared: Survival · Exploration · Base Building

Night of the Dead
Shared: Zombies · Survival · Singleplayer

Subnautica
Shared: Survival · Base Building · Singleplayer

Once Human
Shared: Survival · Base Building · Exploration

Oxygen Not Included
Shared: Survival · Base Building · Singleplayer