
Planets Under Attack
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Demo (1)
Try this game before buying.
Multipacks (1)
DLCs (2)
About Planets Under Attack
The goal of this challenging space adventure is to conquer a galaxy of planets, while undertaking a multitude of special challenges. Take control of your mighty space armada, and wreak havoc across the cosmos, but choose your targets wisely! Conquered planets will net you income to expand your forces, but you must carefully weigh the pros and cons of attacking each planet, as timing and available resources are critical to victory. Above all else, you must keep a cool head. Enemies race to capture your territory as you hone in on theirs and multiple battles will rage on all fronts. You must make tactical decisions at every turn, from scouting your enemies and deploying units, to shoring up your planets’ defenses and knowing when to attack and when to defend. Strategic multi-tasking and a keen military mind will lead directly to unrivaled glory…while careless play will reduce your army to space dust.
The Campaign mode tests your military might with 32 thrilling levels, each with varied planets, tasks and game modes. Defend a planet until reinforcements arrive, fly into uncharted space, conquer planets and set up defenses before rivals attack - the list goes on and on, as there is no shortage of objectives in your struggle for interstellar dominance. Start out as a novice and learn the ropes, or ramp up the challenge with three levels of difficulty. The longer you play the more experience you’ll obtain, allowing you to unlock new technologies, changing the way you play and ensuring you’ll keep coming back for more!
Online
In Online mode, don’t just choose your own path, make the cosmos your own personal battleground! You design the fight, from choosing the amount of players, to selecting your maps. Simply pick a game mode, select your settings, grab some friends, and cut loose.
Key Features
- Impressive moving planetary systems in a three dimensional space
- Stunning cartoon graphics
- Fun, easy to learn gameplay in a rich science-fiction setting
- 8 types of planets
- A diverse campaign with 32 levels and multiple game modes
- 15 multiplayer levels for 2-4 players – either in Online mode against other players, Skirmish mode against the A.I., or work towards the same goals and team-up with players in Team mode.
- Same system multiplayer – allowing players to play with up to 4 people at once, all on the same system, and in any mode they choose.
- 15 unlockable technologies provide gameplay variety in both single and multiplayer modes
- 2 playable races with unique ship designs and gameplay variants
Game details
Game details
Age ratings
Languages
Features
Planets Under Attack price history
Lowest tracked price: £0.46 (Jul 7, 2026) · current best: £0.46 across 8 stores.
Planets Under Attack player count & reviews
73% positive reviews all-time · 43 peak players in the last 30 days.
Planets Under Attack — frequently asked questions
Where can I buy Planets Under Attack at the cheapest price?
Right now the cheapest offer for Planets Under Attack is £0.46 at K4G. KingsPrice compares 9 offers from 8 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Planets Under Attack has ever been?
The lowest price KingsPrice has tracked for Planets Under Attack is £0.46 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Planets Under Attack?
Planets Under Attack peaked at 43 concurrent players on Steam in the last 30 days (highest on Jul 10, 2026). The player chart on this page updates daily.
Is it safe to buy a Planets Under Attack Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Planets Under Attack at a discount?
Create a free price alert on this page and KingsPrice will email you when Planets Under Attack drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *:Windows XP SP2 / Vista / 7 / 8 / 10 / 11
- Processor:1.5 GHz Single Core CPU
- Memory:512 MB RAM
- Graphics:Graphics card with Shader 3.0 support and 128 MB RAM
- DirectX®:9.0c
- Hard Drive:300 MB HD space
Recommended
- OS *:Windows XP SP2 / Vista / 7 / 8 / 10 / 11
- Processor:Intel Core 2 Duo or AMD Athlon 64x2
- Memory:1 GB RAM
- Graphics:Graphics card with Shader 3.0 support and 256 MB RAM
- DirectX®:9.0c
- Hard Drive:300 MB HD space












