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Citadel Zero
Defend the last citadel on a dying alien world. Summon a gacha collection of bio-engineered defense towers, forge a custom loadout, and conquer three modes, story-driven Chronicle, roguelite Contracts, and 1v1 PvP Ascension. Tower defense meets deck-building meta-progression.

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Features
Single-player
Online PvP
Family Sharing
Profile Features Limited 
Languages:
Interface Full Audio Subtitles
English ✔ ✔
Content
Includes Interactive Elements

In-game purchases, Chance based in-game purchases, Online interactivity

This game is not yet available on Steam

Coming soon

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About This Game

[h1]DEFEND THE LAST CITADEL[/h1]

The last human citadel stands alone on a dying alien world, watched from the ruins by mutated sentinels. You command its defense. Summon an arsenal of bio-engineered towers, forge a custom loadout, and hold the line across three distinct game modes.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some of Citadel Zero's visual assets (pixel-art sprites, icons, and backgrounds) were created with the help of generative AI tools, then reviewed and refined by the developer. All such content is pre-generated and baked into the game — Citadel Zero performs no real-time AI generation and connects to no AI service while you play.

System Requirements

    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i3 / AMD Ryzen 3 (2018+)
    • Memory: 4096 MB RAM
    • Graphics: DirectX 11 compatible GPU with WebGL 2.0
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 500 MB available space
    • Sound Card: Windows Compatible
    • Additional Notes: The Steam client must be running.
    Recommended:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i5 / AMD Ryzen 5
    • Memory: 8192 MB RAM
    • Graphics: GPU dédié (NVIDIA GTX 1050+ ou équivalent AMD)
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1024 MB available space
    • Sound Card: Compatible Windows
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