Begin gameplay as a single solar module, starting with nothing to connect with or defend yourself with. From this helpless starting position, use the energy you harvest to branch outward, fortify your defenses, and survive as long as you can.

When you run out of solar modules, the game is over.

To defend your solar modules, you connect them to combat modules. These combat modules resupply their ammo at a fixed rate, and also require energy input from the solar modules.

Both building modules and shooting require energy, which is obtained by connections to solar modules, even indirect connections as part of a larger circuit. If you have a combat module that is not connected to anything, you cannot build a new module starting from there or shoot it even if you have energy elsewhere. You need access to that energy through a connection.

Controls: - Q: Switch to building solar modules - W: Switch to building combat modules - E: Switch to building connections - Left click: Selects a module, or unselects if you click on empty space. - Right click: Builds a new module or link based on your current choice of q/w/e. - Spacebar: Shoots if you have a combat module selected.

To build a new module, select an existing module with left click, then right click within the range circle to build a new one. To connect two existing modules together, left click a module, then right click another module within range.