An idle desktop game featuring a minimalist MMO approach. Nurture your civilization, defend your planet from threats, and steer its evolution. Develop new technologies to explore the vast universe and connect with.

<picture><source srcset="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3817630/extras/18b58201d6d4c9750a1e3fe87c9817b5.gif?t=1757261162"><img src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3817630/extras/18b58201d6d4c9750a1e3fe87c9817b5.poster.avif?t=1757261162" class="bb_img" /></picture>Welcome to Planetary Sim, your own personal universe living discreetly on your Windows desktop. Ever dreamed of having an entire world to care for, a cosmic companion evolving alongside you as you go about your daily tasks?You'll adopt a procedurally generated planet, giving it a name and an identity. This will be your stellar home, a world with a life of its own, whose population will autonomously grow and develop in the background. While you work, study, or relax, your civilization will flourish, evolving from humble beginnings to technologically advanced societies.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3817630/extras/0a5801d20d1eec97260481e49a70540d.avif?t=1757261162" width=610 height=90 /><ul class="bb_ul"><li>Your Non-Intrusive Desktop Companion: Planetary Sim is designed to be a pleasant and visually appealing presence that doesn't interfere with your normal PC use. It's your personal window into a miniature universe.</li><li>Idle Progression with Moments of Interaction: Your civilization's growth is passive, but stay alert! Cosmic events like meteor showers, solar storms, or unknown phenomena will require your quick and simple intervention to protect your inhabitants.</li><li>Evolution and Discovery: Invest Evolution Points to unlock new technologies in an extensive tech tree. Watch your planet visually transform through different eras, from primitive settlements to futuristic metropolises and orbital wonders.</li><li>A Connected MMO Universe: While the core gameplay focuses on your own planet, you're not alone in the galaxy. We offer an MMO experience where you can:<ul class="bb_ul"><li>Develop Communication Technologies: Establish satellite networks to send and receive messages, data, or signals with other players who are also nurturing their own worlds.</li><li>Launch Ships and Expeditions: Build and send spacecraft to explore neighboring systems, discover trade routes (with other players' planets or AI), or establish outposts in other sectors of the universe.</li><li>Interplanetary Systems and Shared Events: Participate in large-scale events that can affect multiple solar systems, share crucial information, or form alliances to overcome cosmic challenges. The galaxy is a living place, with subtle yet significant interactions among its inhabitants.</li></ul></li><li>A Deep Sense of Ownership: Develop a genuine attachment to your planet, watching it grow, overcome challenges, and reach new heights of civilization under your watchful eye.</li></ul>Planetary Sim is a relaxing, long-term experience, perfect for those who enjoy simulation games, idle games, and the idea of having their own small universe that evolves and connects with others, all from the comfort of their desktop.Adopt your planet and join the galaxy today!

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