This question relates to the survival game Subnautica, not link building for websites. In the game, you connect base structures underwater by constructing corridors (I-shaped, L-shaped, T-shaped, or X-shaped) or glass connectors that snap between multipurpose rooms, moon pools, and other compartments. The modules auto-connect when placed close enough and properly aligned. If you're looking for link building information instead, that involves acquiring hyperlinks from other websites to your own to improve search rankings. Link building strategies include creating linkable assets like original research or tools, digital PR outreach to journalists, guest contributions on industry sites, and building relationships with relevant site owners in your niche. At Ottawa SEO Inc., we focus on white-hat link acquisition through content that naturally attracts links rather than mass outreach. This means publishing data studies, local market reports for Canadian cities, or building free tools that solve real problems. A single link from a DR 70+ Canadian news site often delivers more SEO value than fifty links from low-authority directories. The core principle is earning links through merit. Sites link to resources that serve their audience, whether that's a comprehensive guide answering customer questions, proprietary data nobody else has published, or a tool that saves people time. Scalable link building in 2025 requires either significant content investment (15-40 hours per linkable asset) or media relationships built over months or years. For the Subnautica question specifically, make sure your base has structural integrity by reinforcing walls with hull reinforcements if you're building deep or adding many modules. The game displays a hull integrity number that shouldn't drop below zero or your base will flood. Power all connected modules with solar panels, thermal plants, or bioreactors depending on depth and location.