Icarus

Icarus is the player character in Dyson Sphere Program and the mobile platform through which the player explores planets, constructs factories, and advances through the tech tree. It can perform research using either Matrix Labs or its built-in research unit, consuming resources from its inventory. As the game progresses, Icarus becomes more capable through upgrades to movement, storage, power, logistics, and construction support.

At the start of the game, Icarus is equipped with a built-in Replicator that can craft Components and Buildings directly from its inventory. This is essential in the early game, when it serves as the only crafting machine available at the beginning. Some recipes cannot be replicated and must instead be produced in machines such as the Oil Refinery, Chemical Plant, Fractionator, and Miniature Particle Collider.

Icarus begins with four inventory lines of 10 slots each, and each item stacks according to its own stack size. Inventory Capacity research expands standard storage up to 10 lines. Distribution Logistics System adds Logistics Capacity slots, which can be configured to maintain specified minimum and maximum counts of items. These logistics slots can also hold items, but they are not treated as normal inventory; for example, items stored there do not count as placeable materials when placing a Blueprint.

The mech also has built-in energy systems. Icarus has a Mecha Core for energy storage and an Energy Circuit for energy generation, along with a fixed Core Power Gen of 80 kW. Its Mecha Core Capacity and Mecha Fuel Power increase with upgrade level, reaching very large reserves and higher sustained fuel output at later levels. Upgrading the Drive Engine also improves travel performance, with later levels increasing sail speed and warp speed.

Movement is one of Icarus’s most important progression systems. Its base walking speed is 6 m/s. Drive Engine Lv1 unlocks Fly mode, entered by double-jumping, which behaves similarly to walking. Drive Engine Lv2 unlocks Sail mode, which controls very differently and allows travel to other planets and, in theory, other star systems. Drive Engine Lv3 doubles the maximum sail speed to 2000 m/s, and Drive Engine Lv4 unlocks Space Warpers for effective interstellar travel. Further Drive Engine upgrades continue to improve warp speed.

Sailing is powerful but expensive, so efficient launches matter. In Walk and Fly modes, WASD movement is relative to the camera, Spacebar moves up, and Alt moves down. In Sail mode, W redirects velocity toward the camera direction and restores speed up to 100 m/s if it has fallen below that, while S slows Icarus down. Spacebar, A, D, and Alt also reorient velocity, but do not add speed below that threshold. Shift increases speed but consumes a large amount of energy, so minimizing thrust during departure is important.

Icarus also starts with construction drones. Initially it has 3 drones, each traveling at 6.0 m/s and capable of performing one task. Their quantity, task capacity, and speed can be improved through Communication Control and Drone Engine research, making large-scale construction progressively faster and more convenient.