Alien Siege: Earth — cheap CD keys, compare prices
Is it worth buying?
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
Alien Siege: Earth is a retro pixel-art shooter viewed from a top-down perspective, tasking players with fending off wave after wave of invading aliens across recognizable locations around the globe. Along the way you can upgrade your vessel, pick up power-ups, take on special events and missions, and confront boss battles while chasing a high score. Don'tSayGame both made and released the title in 2026.
Best price today
€0.84
lowest in tracked period: official €0.84 near low
The cheapest Alien Siege: Earth key right now costs €0.84 at Steam. The lowest price we have recorded for this game: €0.84.
The average low over the past 3 months was €1.40.
Prices as of
Steam best price Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Lowest — official stores
€0.84
Oct 2026
Price history
last 48 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €0.84 | — |
| Sept 2026 | €2.11 | — |
| Aug 2026 | €1.26 | — |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam
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All-time low so far: €0.84
System requirements
| Minimum | |
|---|---|
| OS | Windows 10 (64-bit) |
| Processor | Intel Core i3-4000 / AMD equivalent (2.0 GHz+) |
| Memory | 4 GB RAM |
| Graphics | Intel HD Graphics 4000 or any dedicated GPU with DirectX 11 support |
| DirectX | Version 11 |
| Storage | 2 GB available space |
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About this game — FAQ
Can Alien Siege: Earth be played single-player?
Yes, Alien Siege: Earth is a single-player game.
What languages does Alien Siege: Earth support?
Alien Siege: Earth is available in: English, French, Italian, German, Spanish - Spain, Arabic, Bulgarian, Czech and 23 more.
Does Alien Siege: Earth use Steam Cloud saves?
Yes, Alien Siege: Earth uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Alien Siege: Earth key?
The cheapest Alien Siege: Earth key is currently sold by Steam for €0.84. The lowest price we have ever recorded for this game: €0.84.
How much does Alien Siege: Earth cost?
Alien Siege: Earth currently costs from €0.84 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.