
Publisher: KKDM · Release date: 2026-03-09
The cheapest Space Tower Defense key that activates in Australia has a listed price of $5.75 at Steam (Steam, GLOBAL key). That is 66% less than the dearest offer we track. Checked .
A strategic space tower-defense game. Enemies detect, warn, and try to bypass defenses, forcing you to adapt. Combine diverse towers and face unique maps for varied battles. With tense sci-fi atmosphere, it delivers a fresh experience beyond traditional tower defense.
Prices last checked . Each is the price the store lists; marketplaces add a service fee at checkout.
No. Steam sells it for $5.75, the lowest price we track in Australia.
The lowest price we recorded for Space Tower Defense in the last 30 days, counting keys for every region, was $5.75. The lowest listed price for a key that activates in Australia is $5.75 today.
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.
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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