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Graph TD: Cosmic
It is a strategy roguelike game. Use cards to form a graph of towers and nodes, tweak heat, power and other mechanics, and minmax what's in your hand. Reverse Earth's fate from the end of time.

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Features
Single-player
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔
Simplified Chinese ✔
Traditional Chinese ✔

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

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?

“I need some feedback from the market and users to adjust the development of the remaining content.”

Approximately how long will this game be in Early Access?

“0.5 y ~ 1y。”

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

“Full version is planned to have more levels. There may be new types of enemies, towers, maps, mechanics, and more story.”

What is the current state of the Early Access version?

“Current version features a fully playable core experience, with the first 3 levels, 60+ towers, 3 sets of enemies, and 1 character with text dialog.”

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

“Prices will rise .”

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

“If you have any questions or comments, please leave a message on the Steam community or email the developer, and I will do my best to reply.”
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Buy Cosmic Tower Defense Graph Theory

INTRODUCTORY OFFER! Offer ends January 5

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About This Game

At the end of the universe, you pilot the Graph Theory to crisscross spacetime, fending off strange matter creatures and reversing Earth’s fate. This isn’t just tower defense—it’s a strategic roguelike where every node placement, power distribution, and heat management decide survival. And there are no upgrades outside of each run; beating the game on your first run isn’t locked behind player stat checks.

Key Features:

Complex Hardcore Strategic Gameplay - With randomized and limited resources, build wisely.

Spacetime Locations - From the end of time to the orbit of a neutron star, with different types of enemy forms.

Build Variety - Towers can have different upgrade directions, changing their functionality—transforming them into support or primary DPS. Place nodes and towers in a graph-theory manner.

Co-pilot - Choose a character to accompany you (currently only 1 is available).

Permadeath Roguelike - If the Graph Theory fails, your consciousness will be transmitted back to the end of time.

AI Generated Content Disclosure

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

Format reference, polish and localization

System Requirements

    Minimum:
    • OS *: Windows 7 SP1 (32/64-bit) / Windows 10 (32-bit)
    • Processor: Intel Celeron G530 / AMD Athlon II X2 220 (1.8 GHz dual-core, x86/x64)
    • Memory: 8 GB RAM
    • Graphics: GTX1050
    • DirectX: Version 12
    • Storage: 1 GB available space
    • Sound Card: Integrated audio (basic audio output support)
    • VR Support: no
    • Additional Notes: no
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
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