The Echo Shop lets you buy direct resources, queue reductions, temporary boosts, and espionage bonus charges with Echoes.
Direct resources grant 1h, 6h, 12h, or 24h of average top 10 production on the active planet. You choose Iron, Crystal, or Aether; the gain does not go through the inventory.
The Time Catalyst reduces a selected queue: buildings, technologies, population, shipyard, devices, or defenses. Time is consumed in queue order. If the first block finishes, the remaining time reduces the next block. If the queue is empty, the purchase is refused without charging you.
Temporary boosts are available for attack, hull, shield, and speed, with 10%, 20%, or 30% tiers that all last 6h. They do not stack by type: if an attack boost is already active, you cannot buy another attack boost until it expires. The speed boost applies only to new missions launched during the boost, never to flights already underway.
The espionage bonus grants +1 level to the next space or ground espionage missions launched successfully. Packs grant 1, 2, or 3 uses for 50, 80, or 110 Echoes. Charges are shared by both espionage types, do not stack, and are consumed on launch.
Example
You buy a Time Catalyst worth 720 minutes for the building queue. If the active building has 5h remaining, it becomes due immediately, then the remaining 7h reduce the next building.