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Starminer is a physics-driven space simulation that puts you in command of an interstellar mining operation. Starting with a modest vessel, you design and build an expanding fleet piece by piece, balancing tonnage, power consumption, and structural integrity as you harvest valuable minerals from asteroid fields across multiple star systems. Every decision matters: mass affects momentum, heat signatures attract alien attention, and resource management drives your expansion strategy.

The core gameplay loop centers on exploration, mining, and incremental fleet growth. You extract minerals from procedurally-rich asteroids, process them through automated production chains, and reinvest profits into new ship modules and research technologies. The modular construction system lets you customize vessels for specific roles—mining, defense, energy production—or create hybrid designs that suit your playstyle. Three game modes support different approaches: Campaign introduces mechanics through structured missions, Sandbox offers creative freedom with customizable starting conditions, and Survival challenges you against escalating enemy waves.

What sets Starminer apart is its commitment to hard-sci-fi realism. Newtonian physics govern all movement; inertia and momentum are constant factors in every maneuver. Heat management becomes critical—every reactor and module generates thermal energy that must be radiated away or risk detection. As your industrial footprint grows, your heat signature rises, eventually attracting hostile alien forces that demand defensive preparation. This creates natural tension between expansion and survival.

The game emphasizes creative problem-solving over scripted progression. You define your own objectives: pursue commercial mining for profit, establish defensive strongholds, colonize distant sectors, or experiment with unconventional fleet architectures. The sandbox nature means no two playthroughs need follow the same path. Built in Unreal Engine 4, Starminer delivers fully-realized 3D environments across three star systems with over 25 distinct environments, making space exploration visually immersive.

Starminer launches in Early Access with a planned year of development. The developers—a dedicated four-person team—are actively refining economy balance, metagame mechanics, and the tech tree based on community feedback. This is ideal for players who enjoy deep simulation systems, modular design, and the challenge of mastering complex logistics in a hostile universe. Expect slow-paced, deliberate gameplay where every kilogram of mass and kilowatt of power matters.