Best Open-World Games with Deep Base-Building

Set in the aquatic alien worlds of Aurora, this sequel to Subnautica offers deep underwater base construction. Players must manage oxygen, heat, and food while building elaborate underwater habitats using advanced fabrication technology.

This Viking-themed survival roguelike features a massive procedural world and a satisfying building system using a voxel-like block structure. Players craft tools, build longhouses and fortresses, and explore biomes filled with challenging bosses.

While primarily an industrial factory builder, this first-person open-world game features a sprawling map to explore and build upon. Players construct massive, multi-story automated factories to produce complex components for rocket parts.

Players are shrunk down to the size of insects in a suburban backyard, where every blade of grass is a giant. Base building is crucial for protection against predators, with structures constructed from natural materials like twigs and leaves.

This vampire action RPG combines Souls-like combat with extensive base building. Players construct vampire castles, manage blood resources, and defend their territory from sunlight and rival vampires in a Gothic open world.

A survival simulator set in the South Pacific Ocean where players must build rafts and island bases from driftwood and other debris. The focus is on long-term isolation, crafting tools, and constructing elaborate shelters on multiple islands.

Players crash-land on a mysterious peninsula inhabited by cannibalistic mutants. Base building is essential for defense, offering detailed structural planning, traps, and multi-level bases built from logs, stones, and crafted materials.

This voxel-based survival horror game features extensive building mechanics that interact with the zombie hord event system. Every wall and trap must be strategically designed to survive the weekly blood moon attacks in a post-apocalyptic open world.

Players start on a small raft and must collect floating debris to expand it into a massive floating home. The game features a unique tethering system for building extensions over the water, requiring constant ocean exploration for resources.

The quintessential sandbox game where players gather resources to build virtually any structure imaginable in a block-based world. While lacking traditional survival quests, its open-ended nature allows for infinite creativity and complex engineering.

A multiplayer-focused survival game where base building is critical for protecting loot from other players. The dynamic raiding system encourages complex architectural designs, including base traps, decoy bases, and reinforced stone structures.

Set in the Amazon rainforest, this survival game emphasizes realistic base building and resource management. Players construct shelters, craft detailed tools, and manage their character's psychological and physical health while exploring the jungle.

A survival action RPG set in a voxel-based kingdom shrouded in flame. Players build and expand their homestead, crafting buildings and automating resource production while fighting against ancient threats in a large open world.

A medieval strategy game that blends city building with tactical battles. Players manage land, construct detailed manor houses, farms, and defensive walls, and lead armies in large-scale siege warfare in a dynamic open world.

This top-down sandbox adventure game features an expansive underground cavern world. Players build bases, farm resources, mine ores, and battle bosses, with a flexible building system that allows for intricate indoor and outdoor structures.

While primarily a clan-based strategy game, Northgard offers base building elements in an open-world map setting. Players expand their territory, build settlements, and manage resources to conquer the land in a Viking-themed environment.

Players build custom vehicles and base structures in a destructible open world. The game focuses on modular construction, allowing for creative vehicle designs and automated base defenses against enemies and environmental hazards.

This single-player sandbox game combines survival with terraforming. Players build bases while altering the atmosphere, temperature, and ecosystems of a hostile planet, unlocking new biomes and resources as the world becomes habitable.

The sequel to The Forest offers enhanced building mechanics with prefabs and structural integrity systems. Players construct complex forts and bases to defend against mutant cannibals in a dense, explorable open-world forest environment.

An exploration-heavy space game where players build bases on any planet, underwater, or in space. The building system allows for intricate modular constructions, and players can share their bases with others in the multiplayer community.