Daniel Park
Jun 16, 2026
Facepunch Studios announced the Harbor DLC for Rust, introducing naval combat, submarines, and underwater base construction with a planned release in Q3 2024.
Rust Expands Into Naval Territory with Harbor DLC
Facepunch Studios revealed the Harbor DLC for Rust during their June developer livestream, marking the survival game’s first major expansion into maritime gameplay. The downloadable content introduces naval combat systems, submarine exploration, and underwater base construction mechanics, fundamentally expanding Rust’s landlocked survival formula into oceanic territories.
The Harbor DLC addresses long-standing community requests for water-based content that have appeared consistently in Steam Community forums since 2019. According to Facepunch’s announcement, the expansion will launch in Q3 2024 with closed beta testing beginning in July for Rust supporters who own the game’s Deluxe Edition.
Harbor represents Rust’s most significant content addition since the introduction of electricity systems in 2019, bringing an estimated 40+ new craftable items and structures specifically designed for aquatic environments.
New Naval Combat and Exploration Systems
The DLC introduces three distinct watercraft categories: assault boats for PvP encounters, cargo vessels for resource transportation, and research submarines for deep-water exploration. Each vessel type supports different crew sizes and serves specific tactical purposes within Rust’s competitive ecosystem.
Assault boats accommodate 2-4 players and feature mounted weapons including harpoon launchers and naval mines. Cargo vessels can transport up to 6 players plus substantial inventory loads, making them valuable targets for piracy but essential for large-scale resource operations. Research submarines offer solo and duo exploration capabilities, accessing underwater monuments and resource nodes unavailable to surface players.
The submarine system introduces depth-based pressure mechanics and oxygen management, requiring players to craft diving suits and pressure regulators. Facepunch developers confirmed that submarines can dive to depths of 50 meters below sea level, revealing hidden cave systems and underwater monuments populated with new NPC threats.
Underwater Construction and Base Building
Harbor DLC transforms Rust’s building system with waterproof materials and specialized underwater construction components. Players can now establish bases beneath the ocean surface using reinforced glass panels, pressure doors, and flooding prevention systems.
| Construction Component | Resource Cost | Durability Rating | Special Properties |
|---|---|---|---|
| Waterproof Foundation | 150 Stone, 50 Metal | 1,000 HP | Prevents water damage |
| Pressure Door | 75 Metal, 25 Gears | 750 HP | Maintains air pressure |
| Reinforced Glass Panel | 100 Glass, 25 Metal | 500 HP | Transparent, bulletproof |
| Airlock System | 200 Metal, 50 Components | 1,200 HP | Automated atmosphere control |
The underwater construction system requires new crafting stations including the Pressure Forge and Submersible Workbench. These specialized tools enable players to craft diving equipment, submarine components, and waterproof electronics necessary for underwater survival.
Underwater bases offer strategic advantages including concealment from aerial reconnaissance and protection from traditional raiding methods. However, they introduce unique vulnerabilities such as flooding risks and limited escape routes during attacks.
Procedural Ocean Content and New Monuments
Harbor DLC expands Rust’s procedural generation system to include oceanic biomes with randomly distributed islands, underwater caves, and floating debris fields. The update introduces five new monument types specifically designed for naval gameplay:
The Abandoned Oil Rig serves as a high-value PvP location featuring helicopter patrols and advanced loot spawns. The Underwater Research Station provides scientific equipment and rare blueprints but requires submarine access and diving expertise to reach safely.
Shipwreck sites scatter across ocean floors, containing historical artifacts and unique crafting materials. These locations refresh periodically during map wipes, ensuring consistent exploration incentives for maritime players.
According to Facepunch’s technical documentation, ocean monuments will spawn based on coastline density calculations, with larger islands supporting more complex underwater structures. The procedural system ensures that no two server wipes produce identical maritime layouts.
Integration with Existing Gameplay Systems
The Harbor expansion integrates seamlessly with Rust’s established progression systems while maintaining competitive balance. Naval combat requires the same weapon and armor crafting skills as land-based PvP, preventing the DLC from creating separate player economies.
Existing electrical systems extend underwater through insulated cables and waterproof junction boxes. Players can power submarine bases using wind turbines positioned on floating platforms or solar panels mounted on surface structures.
The harbor system connects to Rust’s transportation network through coastal harbors where players can transition between land and sea vehicles. These transition points become strategic control locations similar to existing monuments like Launch Site and Military Tunnels.
Resource gathering mechanics adapt to maritime environments with new collection methods including deep-sea mining rigs and kelp forest harvesting. These systems provide alternative progression paths while maintaining resource scarcity that defines Rust’s competitive atmosphere.
Developer Testing and Community Feedback
Facepunch Studios conducted extensive internal testing with focus groups comprising veteran Rust players and content creators. The development team addressed concerns about naval gameplay potentially fragmenting the player base by ensuring all Harbor content integrates with existing server populations rather than requiring separate game modes.
Beta testing will begin with streamers and established community server administrators before expanding to general Deluxe Edition owners. Facepunch plans weekly development blogs throughout the testing period, incorporating community feedback into final balance adjustments.
The Harbor DLC represents Facepunch’s commitment to expanding Rust’s core survival formula while preserving the intense player interaction that has maintained the game’s popularity since its 2018 release. With concurrent player counts consistently exceeding 80,000 players monthly according to Steam statistics, the expansion arrives during a period of sustained community engagement and competitive growth.
Frequently Asked Questions
When will the Rust Harbor DLC be released?
What new building mechanics does Harbor DLC add?
Will Harbor DLC content work on existing Rust servers?
How much will the Rust Harbor DLC cost?
Daniel Park
Former QA tester turned gaming journalist with insider industry knowledge
More about Rust
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