https://store.steampowered.com/app/241410/CastleStorm/

Here you can buy the key CastleStorm at a bargain price. After purchase, you will immediately receive a key, after activating which you will add CastleStorm to the steam library.

You can activate the game in any region (Except Russia and Belarus). At the moment, you cannot activate the key in Russia and Belarus.

Description CastleStorm:
Welcome to the world of CastleStorm, a super genre mashup of 2D physics destruction mashed with tower defense brawler! CastleStorm was born out of the fond childhood memory of building and destroying LEGO castles.
The clouds bring rumors of war…It’s Knights vs. Vikings in CastleStorm, where medieval warfare meets 2D physics-based destruction! Controlling the battle in real time, players will harness the power of medieval artillery, manage a fearsome ground attack, and cast powerful spells! CastleStorm features a story-driven solo campaign, a custom castle editor, online multiplayer, co-op modes, and more. Building castles and knocking them down has never been so much fun!
CastleStorm is a physics based tower destruction game, combining elements of real time strategy, resource management, and a beautiful blend of challenging gameplay scenarios.

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Key activation instructions:
1. After purchase, you receive a unique key that you need to copy and enter into the Steam client.
2. Opens steam. We are looking for the button "Add game" in the lower left corner, then click on "Activate in steam"
3. In the appeared window, insert the format key - HHHHH-HHHHH-HHHHH
4. After activation, the game will appear in your library.