IndieCommunity

Boss Key

14 August 2026

Simulation

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At a glance

Boss Key is a simulation video game, released on 14 August 2026 on PC. Current Steam price: €8.49.

About

One-stop card game development toolbox: visual design, instant testing, AI assistance, and code extensionbuild your own trading card game solo.

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Rank · Simulation—unranked

Released2 months agoAugust 2026

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Steam news

The latest announcements posted on the game's Steam page.

Steam

12 September 2026September 12, 2026 Patch

Fixed an issue where the AI cloud service might fail to connect. Optimized the AI configuration interface.

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Steam

12 September 2026September 12, 2026 Update

I. Adding Custom AI Tools Custom AI tools are now supported. You can configure them via the top menu bar → Help → AI. Checked – Enabled Unchecked – Disabled Currently, several example tools are provided, and you can also extend them in specific ways (see Chapt

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Steam

10 September 2026September 10, 2026 Update

Fixed compatibility issues with existing mods.

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