Vortex

Overview
The Vortex is the massive swirling feature located directly in the center of the map and is the location where all shapes must be delivered to be counted for credit towards a Milestone or Job. The Vortex sits at the center of the permanent Vortex Platform, a unique 3x3 platform found in Classic Mode maps. The platform provides a 54×54 (2,916 tiles) building area with the central 20×20 (400 tiles) area blocked by the Vortex itself, leaving 2,516 usable tiles of buildable space—the same usable area as the 4×2 Machine Platform.
Resource Patches are located on each of the four sides of the Vortex Platform and provide the raw Shapes the player extracts at the start of a run. Early-game factories and extraction machines are typically built on the Vortex Platform so shapes can be transformed by machines and delivered directly to the Vortex using Belts and Belt Launchers. The platform has 12 notches around its outer perimeter that accept belt connections; when Train Vortex Delivery is not unlocked those notches allow up to 144 belts of shapes to be delivered.
The Vortex has twelve 3-level ports on each of its four sides for accepting shape deliveries. Only four ports per side are available when starting a new game; additional ports are unlocked by acquiring the 3rd Machine Level shop item and by purchasing Vortex Upgrades. The rotation of a shape does not matter when delivering it to the Vortex, and pins are ignored by the Vortex in some cases. Shape placement and orientation rules that affect other machines do not always apply at the Vortex.
The game provides visual delivery indicators at the end of belts and notably at the Vortex so players can see whether a delivered shape is relevant to current goals:
- Gray background indicates a shape is not required for any current or future Milestone, Job, or Operator Level.
- Green background indicates a shape is being counted toward a current Milestone or Job.
- A flag indicates a shape was being counted but enough have now been delivered to collect the reward.
- An orange lock indicates a correct shape for a future Milestone/Job that is not yet unlocked.
- A purple star denotes an Operator Level shape is being delivered.
- A blue "B" marks a Blueprint Shape delivery.
Practical notes:
- Early-game layouts often place extractors and basic machines directly on the Vortex Platform to minimize belt run length to the Vortex.
- Unlocking the 3rd Machine Level and purchasing Vortex Upgrades expands available Vortex inputs and enables multi-level deliveries.
- Use the delivery-background indicators at belt ends to prioritize which shapes to produce for immediate research rewards.