Games like El Conquista
Games like El Conquista include Conan Exiles Enhanced, Rust, The Forest, Once Human, and Enshrouded. We matched them by the tags players give El Conquista on Steam (Strategy, 4X, Building, Isometric, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Conan Exiles Enhanced
Shared: Building · Crafting · Open World

Rust
Shared: Crafting · Building · Open World

The Forest
Shared: Building · Crafting · Open World

Once Human
Shared: Building · Open World · Crafting

Enshrouded
Shared: Crafting · Open World · Building

Valheim
Shared: Building · Crafting · Open World

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Singleplayer

Fallout 4
Shared: Singleplayer · RPG · Open World

Terraria
Shared: Building · Crafting · Adventure

ARK: Survival Ascended
Shared: Building · Crafting · Open World

ARK: Survival Evolved
Shared: Building · Crafting · Open World

Jurassic World Evolution
Shared: Building · Strategy · Singleplayer

Fallout: New Vegas
Shared: Singleplayer · RPG · Open World

The Matchless Kungfu
Shared: Strategy · Singleplayer · RPG

TerraTech
Shared: Building · Crafting · Open World

Far Cry® Primal
Shared: Singleplayer · Open World · Crafting

Medieval Dynasty
Shared: Building · Crafting · Singleplayer

Subnautica
Shared: Crafting · Singleplayer · Open World

Cyberpunk 2077
Shared: Singleplayer · RPG · Open World

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

The Riftbreaker
Shared: Building · Crafting · Singleplayer

My Time at Portia
Shared: RPG · Crafting · Singleplayer

Satisfactory
Shared: Crafting · Building · Open World

Stellaris
Shared: Strategy · 4X · Sci-fi