Build your city block by block and defeat waves of mechs in this tower defense roguelike! Combine powerful cannons with unique effects to survive the unforgiving wasteland and explore the underground to gather resources and find powerful relics.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“We believe that with the help of the community, the game can become the best possible version of itself. Early Access allows us to gather continuous feedback and develop Cannon Keep with the players.”

Approximately how long will this game be in Early Access?

“Cannon Keep will stay in Early Access for one year at most.”

How is the full version planned to differ from the Early Access version?

“We plan to add more content to the game to increase the depth and variety of runs. There are a lot of places where we see potential improvements for the game, like buildings, relics, mining features and commanders. However, we want to focus on the areas players enjoy most, which means the specific content roadmap will be based on player feedback.”

What is the current state of the Early Access version?

“The current version offers the full roguelite tower defense experience with 65 unique buildings, 3 playable levels with unique bosses, and 3 commanders, as well as numerous relics and enemy types that shape each run differently.”

Will the game be priced differently during and after Early Access?

“The price might slightly increase for the full release of the game.”

How are you planning on involving the Community in your development process?

“We communicate with the community on the Steam forums and our Discord server. Players also have the option to send us feedback from within the game.”
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Join the Cannon Keep Playtest

The Playtest will be added to your Steam Library when its available. Watch for upcoming testing plans from the developer.
This game is not yet available on Steam

Planned Release Date: Dec 2, 2026

This game plans to unlock in approximately 2 weeks

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About This Game

BUILD

Backpack Battles meets tower defense! Place and merge buildings onto the grid to grow your defenses. Expand your city's borders to increase your damage and scavenge the underground for resources.

DEFEND

Watch your defenses cut down waves of enemies and turn the tides of combat with the commander's powerful ability. Combine turrets with various effects to maximize your city's defensive capabilities.

PERSIST

Find your way to play by combining different buildings into your own unique strategy. Face growing hordes of enemies and take down their boss to claim a piece of the wasteland for yourself.

System Requirements

    Minimum:
    • OS *: Windows 7 or newer, 64-bit
    • Processor: Intel Core i3-6100 / AMD FX-8350
    • Memory: 4 GB RAM
    • Graphics: GTX 580 / AMD HD 7870
    • DirectX: Version 11
    • Storage: 200 MB available space
    Recommended:
    • OS *: Windows 7 or newer, 64-bit
    • Processor: Intel Core i5-4670K / AMD Ryzen 5 1500X
    • Memory: 4 GB RAM
    • Graphics: GTX 680 / AMD HD 7970
    • DirectX: Version 11
    • Storage: 200 MB available space
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.