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Code name gemstone
Codename Gem is a side-scrolling roguelike. Clear endless stages, collect stronger relics, and face fiercer monsters. Spend the gold you bring back from each dungeon on upgrades and consumables — or risk it all in a mini-game for a one-shot leap. How far can you go?

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Features
Single-player
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔
Simplified Chinese ✔ ✔ ✔
This game is not yet available on Steam

Planned Release Date: November 2026

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About This Game

Codename Gem is a side-scrolling roguelike. Strengthen yourself through endless stages, and take on ever more powerful monsters with ever stronger relics. Every dungeon run brings back gold to upgrade yourself, buy more consumables, and push through more stages. Or, if you trust your wits, clear a stage and then risk it all in a mini-game for every last coin — upgrade in one shot and dive back in. All or nothing. How deep can you go before it's over?

This is our development team's very first attempt at making a game. We hope you have fun.

AI Generated Content Disclosure

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

AI Content Disclosure

Artwork: The 2D artwork in this game (characters, monsters, items and UI icons) is first hand-drawn by our team. We then use generative AI image tools as editing aids to modify that artwork, such as local repainting/inpainting, line and color cleanup, background extension and upscaling. Every AI-assisted change was directed, reviewed and approved by us, and the final art style and composition are our own work.

Third-party assets: Some environment and scene backgrounds are free-to-use resources obtained from the internet. We have verified that their licenses allow commercial use. Attribution credits are included in the game where the license requires it.

Localization: The English store page text and in-game English text were drafted with AI-assisted translation from Chinese, then reviewed and edited by us.

Code: AI coding tools were used to help write parts of the game code. These tools do not generate any content that players see, hear or interact with at runtime.

Runtime AI: The game does not use AI at runtime. It does not connect to any AI service, does not send player input to an AI model, and does not generate images, audio, text or any other content live.

Sound effects are royalty-free assets from Mixkit and Kenney (CC0).
Music: AI generated game music, manually reviewed

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: win10
    • Processor: Intel Core i3-4130 / AMD FX-6300 或同级
    • Memory: 4 GB RAM MB RAM
    • Graphics: 支持 DirectX 12 的显卡（NVIDIA GTX 750 / AMD R7 260 / Intel HD 530 或以上）
    • Storage: 300 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system