Ignite a dying star and forge a galactic empire from a single tap. A cozy sci-fi idle clicker: harvest Energy, automate cosmic megastructures that earn while you sleep, then Ascend, collapse it all into Dark Matter and be reborn as a brand-new star.
Release Date:
Aug 2, 2026
Developer:
Tom
Publisher:
Tom

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Planned Release Date: Aug 2, 2026

This game plans to unlock in approximately 10 days

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About This Game

Tap a star. Build a galaxy.

Clickstellar is a cozy sci-fi idle clicker about the biggest number of all: a star's

output. Tap a lone world to harvest Energy by hand, then let an ever-growing empire of

reactors and megastructures pour it out for you  even while the game is closed.

Every tap is a spark. Land a critical SURGE, chain combos, and watch your Energy per

second climb from a trickle to an astronomical torrent.

Spend Energy on a deep tier of structures: Solar Collectors, Fusion Reactors, Antimatter

Cores, Dyson Swarms, Nebula Extractors, Pulsar Arrays, Quasar Engines and beyond. Buy one at

a time, in tens, MAX, or fill straight to the next ×25 milestone.

  • Enhancements: dozens of one-time ×2 upgrades for your structures and taps.

  • Synergies: structures that boost each other as your empire grows.

  • Milestones: every 25 you own doubles that structure's output.

Comets streak across the void, catch them for Frenzy multipliers, instant Windfalls, free

structures, and rarer surprises. Blink and you'll miss them.

When your world can give no more, collapse your entire empire into Dark Matter, a

permanent boost to every future run. Each ascension reforges your planet into a brand-new

star (cycling nine stellar types) beneath a shifting nebula sky. Spend Dark Matter on a

sprawling prestige tree: sharper taps, cheaper structures, and full automation, an

Auto-Harvester that taps for you and a Foreman that buys the best value on its own.

Features

  • A satisfying, always-climbing idle loop with real offline progress (bank up to 12 hours away).

  • 60+ achievements, including hidden ones, each stacking a permanent production bonus.

  • A ~40-node Dark Matter prestige tree with true idle automation.

  • 7 comet event types, cross-structure synergies, and ×25 milestones.

  • A living 3D centerpiece: a glowing planet that becomes a star with orbiting satellites and rings.

  • Big-number notation (Short / Scientific / Engineering) for the truly ridiculous totals.

  • Full controller support with on-screen prompts, great on the go.

  • No ads, no timers, no nonsense. Just number, going up.

Steam Deck & controller

Play with a gamepad or the Deck's touch/trackpad, the whole game is navigable with a

controller, with prompts that match whatever you're holding.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

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System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Dual-core 2.0 GHz
    • Memory: 2 GB RAM
    • Graphics: Vulkan 1.0-capable GPU, Intel HD 500-series (2016), NVIDIA GeForce GTX 600, or AMD Radeon HD 7000 or newer, with up-to-date drivers
    • Storage: 300 MB available space
    • Additional Notes: Requires a Vulkan-capable GPU.
    Recommended:
    • OS: Windows 10 / 11 64-bit
    • Processor: Quad-core 2.5 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel UHD 620 (2017 integrated) or any dedicated GPU
    • Storage: 300 MB available space
    • Additional Notes: Runs comfortably on 2017-era integrated graphics
    Minimum:
    • OS: macOS 12 Monterey
    • Processor: Apple Silicon (M1) or Intel Core i5 (2015 or newer)
    • Memory: 4 GB RAM
    • Graphics: Metal-capable GPU (every Mac that runs Monterey qualifies)
    • Storage: 300 MB available space
    Recommended:
    • OS: macOS 13 Ventura or newer
    • Processor: Apple Silicon (M1 or newer)
    • Memory: 8 GB RAM
    • Graphics: integrated Apple GPU
    • Storage: 300 MB available space
    Minimum:
    • OS: Ubuntu 22.04 or equivalent 64-bit distro / SteamOS 3.0
    • Processor: Dual-core 2.0 GHz (x86-64)
    • Memory: 2 GB RAM
    • Graphics: Vulkan 1.0 capable-Mesa 22+ (Intel HD 500 / AMD GCN) or NVIDIA GTX 600 series with driver 470+
    • Storage: 300 MB MB available space
    Recommended:
    • OS: Ubuntu 22.04+ / SteamOS 3 (Steam Deck)
    • Processor: Quad-core 2.5 GHz · Memory: 4096 MB
    • Memory: 4 GB RAM
    • Graphics: any Vulkan-capable GPU-integrated (Intel UHD 620) or newer
    • Storage: 300 MB MB available space
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