Cosmica: Idle Universe

Build your observatory empire across the cosmos. Tap to discover Stardust, buy telescopes and probes that earn for you while you're away, and ascend through cosmic tiers as you uncover the universe one generator at a time.

Cosmica is a relaxed idle game with infinite progression. Start with a backyard telescope and grow to operate Dyson Swarm Lattices, Multiverse Receivers, and the Demiurge Engine itself. Every generator you buy earns Stardust automatically — even when the app is closed.

▸ TAP & IDLE
Tap the cosmic orb to discover Stardust manually, then buy generators that produce it for you 24/7. Offline earnings catch you up when you return.

▸ ASCEND THROUGH 7 COSMIC TIERS
Stargazer → Astronomer → Astrophysicist → Cosmologist → Galactic Cartographer → Architect of the Void → Demiurge. Each tier grants a permanent earnings multiplier that survives even Big Bang resets.

▸ BIG BANG PRESTIGE
Hit the lifetime threshold and trigger a Big Bang reset. Your generators reset to zero, but you earn Cosmic Shards — each granting +2% permanent earnings, compounding forever. The deeper into the universe you go, the faster you progress.

▸ 12 GENERATORS, 36 UPGRADES
From Backyard Telescope through Orbital Imager, Wormhole Sensor, Galactic Survey Net, and beyond. Three escalating upgrade tiers per generator, plus global multipliers that reshape your strategy late-game.

▸ FREE TO PLAY
Free download with rewarded ads. Optional Remove Ads ($2.99) if you'd rather play without banners. Earnings boosts and Cosmic Shards available via watching short rewarded ads OR via one-time purchases — your choice.

▸ ICLOUD SYNC + GAME CENTER
Your save syncs automatically across all your Apple devices via iCloud. Compete on Game Center leaderboards: lifetime Stardust, total prestiges, and highest tier achieved.

▸ NO ACCOUNT, NO ANALYTICS, NO TRACKING
Single-player idle. The developer does not run a server, does not collect analytics, and never sees your data. Your progress is yours, on your device and in your private iCloud account.

Built solo by an indie developer. Support development via Ko-fi (link inside Settings) — every coffee funds the next update.

Have fun, observer.