
Publisher: Indie. io · Release date: 2026-04-03
The cheapest Subway Invasion key that activates in the UK costs £2.10 at Kinguin (Steam, GLOBAL key). That is 47% less than the dearest offer we track. That compares with £3.99 on JoyBuggy. Checked .
Fight for survival in NYC’s deadliest subway warzone. Relentless aliens. Limited ammo. One lone defender. Upgrade, strategize, and survive wave after wave of invasion. New York’s underground has become a warzone. Aliens have invaded the subway, and you, a lone security guard, are the last line of defence for a train full of terrified passengers. Armed with only a pistol and limited ammo, you must fend off relentless waves of extra-terrestrial attackers while scavenging the tunnels for vital supplies. Every bullet counts and every decision could mean survival or annihilation. As the invasion intensifies, so does the challenge. Earn points by eliminating enemies and upgrade your weapon with powerful attachments like scopes, flashlights, and thermal sights. Unlock devastating sub-weapons such as grenades, fortify key areas by locking doors, and strategize your defence against increasingly cunning alien foes. Some will charge straight at you while others target the train’s defences, forcing you to multitask and make split-second tactical choices. With each wave, the stakes grow higher. Aliens become faster, stronger, and start using weapons against you. The subway transforms into a battlefield where survival demands sharp reflexes, precise shooting, and smart resource management. Do you have what it takes to hold the line and stop the invasion before it’s too late?
Prices last checked . Each is the price the store lists; marketplaces add a service fee at checkout.
Yes. The cheapest key that activates in the UK costs £2.10, 47% less than the £3.99 JoyBuggy asks.
The lowest price we recorded in the last 30 days was £2.07. The cheapest offer today is £2.10.
Not always. Stores that sell their own keys, such as Steam and GOG, add no service fee, though sales tax is added at checkout in the US and Canada. Marketplaces add a service fee at checkout, and some payment methods add their own, so on a marketplace the total at checkout will be higher than the price listed here.
Not all of them. Keys sold for another region (LATAM) may not activate on an account registered in the UK; that applies to 1 of the 7 offers here. The cheapest key named above does.
Official stores sell their own keys. Marketplaces and third-party sellers sell keys from other sellers: check the seller and the key’s region before you buy, and pay through the store’s own checkout.
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