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.

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.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4232270/extras/0236172dbe347fcbc009ea5fdd128a3b.poster.avif?t=1770222670" width=854 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4232270/extras/0236172dbe347fcbc009ea5fdd128a3b.webm?t=1770222670" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4232270/extras/0236172dbe347fcbc009ea5fdd128a3b.mp4?t=1770222670" type="video/mp4"></video><h2 class="bb_tag" >Key Features:</h2>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.

Good Game Database

Graph TD: Cosmic Achievements