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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.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
At the end of the universe, you will pilot the "Graph Theory" to traverse through time and space, fending off the invasion of exotic biological substances and reversing the fate of Earth. This is not just an ordinary tower defense game - it's a strategically designed game with depth. Every deployment of nodes, power distribution, and heat management will determine your survival or demise.
Complex and challenging strategic gameplay - resources are random and limited, requiring careful planning.
Spacetime scenarios - from the end of time to neutron star orbits, enemies come in various forms.
Diverse construction gameplay - towers can be upgraded in different directions, changing their functional roles (from support to main output). Arrange nodes and towers according to graph theory logic.
Physics simulation - from spring grids, thermal simulation to current simulation, all operate with an approximate simulation method at the underlying logic (not scientific at all).
Co-pilot system - choose a character to accompany you (currently only one available).
Permanent death roguelike mechanic - if the "Graph Theory" is lost, your consciousness will be teleported back to the end of time.
Driver cards - combine and upgrade drivers, placing them inside defensive towers to provide various bonuses.
Right now the cheapest offer for Graph TD: Cosmic is PLN 36.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Graph TD: Cosmic is PLN 29.59 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Graph TD: Cosmic drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
