Idle tower defense meets arcade action, survive endless alien waves.
An alien invasion has reached Earth. Fortunately, humanity has prepared the only reasonable response: An unreasonable amount of firepower. Welcome to Idle Planet Defender — an idle strategy and space defense game where you defend Earth, destroy alien fleets, upgrade powerful weapons, unlock powerful research upgrades and features, and fight many different alien forces across the galaxy.
The aliens brought a fleet. We brought weapons.
Turn Earth into the most heavily armed planet in the galaxy. Deploy and upgrade Tesla weapons, heavy cannons, scatter guns, orbital weapons, satellites, combat drones, cryogenic technology, chain lightning and several weapons that probably should not have passed safety testing.
Then activate your Ultimate Weapons. Stop time. Open a black hole. Turn enemy airspace into a regrettable life decision.
Unlock 90+ research nodes and continuously improve your defense grid with powerful upgrades, systems and enhancements. Increase your firepower. Strengthen your economy. Unlock new technology. Build better weapons.
Everything you unlock stays with you. Human progress is permanent. The aliens, less so.
Fight 50 different alien ship classes with unique threats, defenses and increasingly questionable amounts of armor. Crack their shields. Destroy their armor. Watch massive warships fall apart above the planet they made the administrative mistake of invading.
They have numbers. You have boom. Do the math.
Earth is only the beginning. Expand your planetary defense operation across new worlds including Mars, Inferno, frozen planets, storm-covered worlds and other locations humanity discovered and immediately decided needed guns.
Claim them. Upgrade them. Defend them.
Your automated weapons attack incoming enemies while you focus on strategy, research and upgrades.
Optimize your build. Grow stronger. Destroy bigger fleets. Then prepare for the next invasion.
Complete daily missions, collect supply drops, spin the Stellar Wheel, earn rewards, progress through the Milestone Pass and climb the global rankings.
Somewhere in the galaxy, another commander thinks their defense grid is better than yours. Prove them wrong.
Real screens from Idle Planet Defender — the command deck, orbital combat and the systems behind your build.
zoom_inTap a screenshot to open it full size
Live ranking of top commanders sorted by maximum wave reached across War Tiers.
| Rank | Commander | Best Wave |
|---|---|---|
| 01 | personVened | Wave 481 |
| 02 | personmikuni | Wave 350 |
| 03 | personKRISU | Wave 290 |
| 04 | personZero | Wave 260 |
| 05 | personHokkabaazz | Wave 251 |
| 06 | personROWDY | Wave 160 |
| 07 | personJohan Jansson | Wave 150 |
| 08 | personEcmel Kaan Yalan | Wave 80 |
| 09 | personCommander--585C | Wave 70 |
| 10 | personmevlüt gögebakan | Wave 63 |
Secure your account, view transaction history, and submit support tickets directly from the web.
Idle Planet Defender is out now on Google Play. The App Store version is on the way!
Talk strategy with other commanders, get help fast, and hear about updates and events before anyone else.
