Starscanner

Swipe to scan deep space and discover 475+ planets, moons, comets, nebulae, and alien signals — each with its own name, story, and sense of humor. Starscanner is a free idle space exploration game where every scan adds something new to your cosmic collection. Meet Kepler-452b, "Earth's older cousin who definitely has its life together by now." Lock eyes with the Helix Nebula, which stares right back. Decode signals nobody was supposed to hear. Every discovery comes with handcrafted lore worth reading — no copy-paste filler. ★ EVERY SCAN IS A MYSTERY BOX Sweep your scanner across the star field and see what the void coughs up. Most scans bring Common finds. Some bring Rares. And every once in a while, the screen lights up gold — a Legendary. That next swipe could be the one. ★ POWER UP YOUR SCANNER Spend Research Points on upgrades that make every scan better: wider sweeps that find more at once, amplified signals that pull rarer discoveries, critical scans that double your rewards, and bad luck protection that guarantees dry streaks never last long. ★ COMPLETE THE COLLECTION Hunt across 7 categories — Planets, Moons, Comets, Nebulae, Artifacts, Resources, and Signals — and 5 rarity tiers from Common to Legendary. Search, filter, and track your progress as you close in on the final missing entry. ★ SQUAD UP WITH FRIENDS Join a squad of up to 10 scanners. Pool your energy to decode signals too big for any one player, split the bonus rewards, and climb the squad rankings together. ★ PROGRESS WHILE YOU'RE AWAY Starscanner respects your time. Your research continues while you're offline — come back to claim idle rewards and jump straight back in. Perfect for 30-second check-ins or hour-long deep dives. ★ FREE & FAIR Every upgrade can be earned through play. No paywalls, no pay-to-win — the shop is for convenience only, and one small purchase removes ads forever. FEATURES • 475+ uniquely named discoveries with witty, handcrafted descriptions • 7 discovery types × 5 rarity tiers to collect • 11 scanner upgrades to research • Squad multiplayer with co-op signal decoding • Offline progress and idle rewards • Sleek dark sci-fi look with haptic feedback and retro sci-fi sound effects • Optional Google sign-in for cross-device squad play The void is full of strange and wonderful things. Download Starscanner free and find them.