Subnautica is developed using the Unity game engine. Unity is a powerful and widely used engine that allows developers to create both 2D and 3D games across multiple platforms, including PC, consoles, and mobile devices.
Unity provides a robust suite of tools for developers like Unknown Worlds Entertainment (the creators of Subnautica), enabling them to build rich, immersive environments and complex gameplay mechanics. It offers comprehensive support for various graphical effects, physics simulation, artificial intelligence, and much more.
Subnautica is a testament to the capabilities of Unity, showcasing intricate underwater ecosystems, detailed creature behaviors, and dynamic weather conditions—all accomplished within this versatile game engine.