
Strait Defense CD Key
PC price comparison · Studio Bing-Huan · Nov 1, 2026
Build your defense across sea, land, air, and underwater threats in this 2D tactical tower defense game. Choose from 20 equipment types, plan your loadout, and invest in permanent upgrades. Protect key facilities across six campaign stages, face unique bosses, and pursue five-star results.
Lowest final price
at Steam · Standard Official
Historical low: $2.99 on November 2, 2026
Get the best deal ↗Compare Strait Defense key prices
Sorted by final price including fees, never by commission.
| Store | Edition | Activates on | Region | Price | Fees | Final price | |
|---|---|---|---|---|---|---|---|
SteamOfficial | Standard | Steam | Global | $2.99 | none | $2.99 | Go to store ↗ |
- SteamOfficial
Standard · Steam · Global
$2.99 · fees: noneGo to store ↗$2.99
Strait Defense price history
The chart appears after a few days.
Historical lows by store
- Steam$2.99
About Strait Defense
Find the threat. Hold the line. Ships on the horizon, missiles overhead, and enemies beneath the surface put every deployment to the test. Strait Defense is a single-player 2D tactical tower defense game inspired by Taiwan and its surrounding waters. Coordinate detection and firepower, manage limited funds, and protect the facilities that keep your defense standing. Detect before you engage Firepower needs information. Use radar, surface search, and anti-submarine units to locate threats, then bring the right weapons to bear. Air defense, anti-ship, ground combat, and anti-submarine roles each have a place in your plan. Adapt your sensor coverage and defensive positions as the battlefield changes. Build your tactical loadout Choose equipment to suit your battle plan, from air-defense missiles, main battle tanks, and coastal anti-ship missiles to frigates, attack submarines, and aircraft. Support your line with repair and supply facilities, or prepare interception zones with land and naval mines. Deployment, upgrades, repairs, and support all compete for your funds. Diverse battlefields. Unique boss encounters. Defend the island's airspace and the strait, then fight across beaches, valleys, city streets, and the final perimeter. New terrain and attack routes call for new plans. Each stage ends with its own boss challenge, while campaign outcomes carry forward between battles. Research, adapt, and improve your results Invest in permanent equipment research, revise your loadout, and return with a stronger plan. Study the enemy gallery, identify threats, and refine your deployments to improve your star ratings. Features A single-player campaign across varied battlefields with distinct bosses. A varied equipment roster to build your tactical loadout. Air, ground, surface, and underwater threats with specialized detection and weapons. Battlefield deployment, upgrades, repairs, support, and resource management. Permanent research, an enemy gallery, persistent campaign outcomes, and star ratings. Colorful pixel-inspired cartoon art and battlefield music. The campaign, maps, and combat values are fictional game settings.Read more
Strait Defense system requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: Intel Core i5 / AMD Ryzen 5
- Memory: 8192 MB RAM
- Graphics: NVIDIA GTX 960 / AMD RX 480
- Storage: 1024 MB available space
Recommended
- Requires a 64-bit processor and operating system
Strait Defense key FAQ
+What is a Strait Defense CD key?
A Strait Defense CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for Strait Defense?
The cheapest Strait Defense key right now costs $2.99 at Steam. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for Strait Defense?
The lowest price we have recorded for Strait Defense is $2.99 on November 2, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+Is it safe to buy a Strait Defense key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.







