Graph TD: Cosmic

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. Core FeaturesComplex 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. 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.