Planet Nine
Offers
Trailers & screenshots
1 / 14
About Planet Nine
Planet Nine is a single-player game in which you play as a clone spawned by an A.I. and sent to save an alien planet from an invasion. You pilot a customizable mech, take on missions and explore the dangerous land to uncover the secret of the Ninth Planet.
Explore the planet
Roam freely across the planet and explore caves and vaults. The hostile areas are filled with mechs, monsters and raiders. Missions drive the gameplay, with side missions also available, and data logs reveal the Ninth Planet’s history.
Customize your mech
Build and upgrade your mech using over 100 different parts. Gain levels and perks, and find loot in containers to improve your mech.
Combat and equipment
Fight in fast-paced, top-down combat against hostile mechs and monsters. Energy stores and shields help keep you alive, while drones, flares and sensors can give you an edge in battle.
Frequently asked questions
The best price for Planet Nine is $1.26 at Kinguin. That is 74% less than on Steam, where it costs $4.99. 3 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Planet Nine stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Planet Nine are: Windows 7, GeForce GT 460, Intel Core i5, 4 GB RAM, 3 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Planet Nine is a single-player game.
Mostly, yes. Valve rates Planet Nine as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy Planet Nine 74% cheaper than on Steam.
Planet Nine is available for 74% less in shops such as Kinguin.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
Similar games
Daemon X Machina
−96%$1.79
$49.9919 offers
Armored Core VI: Fires of Rubicon
−58%$25.17
$59.9919 offers
M.A.S.S. Builder
−86%$3.45
$24.999 offers
Dolls Nest
$19.99
1 offer
Supercharged Robot Vulkaiser
−76%$1.16
$4.998 offers
Mecha Knights: Nightmare
$15.99
1 offer
The Bloodline
−60%$7.97
$19.9920 offers
Titanfall 2
$3.72
11 offers
BattleTech
−81%$7.53
$39.9918 offers
Devil Blade Reboot
$15.99
1 offer
Gearbits
$9.99
1 offer
Gun Metal
−79%$0.60
$2.9912 offers