Castra
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About Castra
Castra is a strategy game about building an army, conquering territory and defending what you take. You plan attacks on the world map, order unit movements and carry out assaults, while balancing your forces and resources between expansion and defense.
Conquer and defend
Controlled territories generate resources, but taking too many can leave your forces spread too thin. Use the world map to choose where to attack and which territories to reinforce, and find a balance between gaining ground and protecting it.
Build your army
Each faction has a military camp where you can construct buildings. Production buildings, including the barrack, factory and airstrip, produce units once built. Managing resources and choosing which units to produce can determine whether you are ready when an attack comes.
Combine your units
Each unit has strengths against specific units and weaknesses against others. You need to anticipate enemy attacks and choose unit combinations accordingly, as the matchups between forces play a critical role in the outcome of battles.
Frequently asked questions
The best price for Castra is $4.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Castra are: Windows 7, GeForce GTX 950, 4 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Castra is a single-player game.
Yes. Castra is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.










