Unknown Worlds Entertainment has revealed a fundamental redesign of how players will construct and customise bases in Subnautica 2, moving away from the constraint-based building mechanics that defined its predecessors.
The base-building system is "brand new," base design lead Kiel McDonald says, and aims to "keep the spirit" of base-building in the first two games while enabling players "to express themselves even more."
The shift centres on what the studio calls a procedural system. Rather than forcing players to conform to specific shapes, the new approach means "you don't have to be constrained to a specific shape," McDonald explains. This represents a significant departure from earlier games where room pieces snapped together in predictable, geometric patterns.
With what McDonald describes as "a much more sculptural and expressive system," a highlighted example is in the windowmaking, where previously players just had to accept whatever sheets of glass came standard. The vlog showcased customisable window options that give bases a more personalised aesthetic.
The technical innovation appears to set Subnautica 2 apart from existing survival titles. "This is a brand new system, I don't think we've seen anything like this in any other survival game," Kiel McDonald says. "What we're doing is kind of novel. We're using some techniques that haven't been used in games like this before," Milan Singh, senior gameplay engineer, adds.
The system includes much more connection points for each building piece, greater freedom as to where to put those pieces, and a much larger amount of building pieces with some highly specific designs such as a "Half-Round Room" and a "Nook".
Beyond structural freedom, players will also be able to customise lighting, paint the base, and decorate its interior. This granularity suggests that base building has become a significant gameplay pillar in its own right rather than a purely functional exercise in resource management.
The trailer does not provide a release date; Subnautica 2 remains slated to launch into early access sometime later this year. Based on previous early access games Unknown Worlds has developed, the team expects early access to take about 2 to 3 years.
For players who spent time building underwater bases in the original Subnautica, the redesigned system offers practical validation of an activity that was optional and often overlooked. By removing rigid geometric constraints, Unknown Worlds is tacitly acknowledging that base construction is intrinsically rewarding to a substantial player segment, not merely a survival necessity.