Bay Upgrades

Relay Network

• Bays
  • Mint
  • Refinery
    • Transmutation
  • Cooling
  • Recovery
• Salvage
• Relay Heat
• Relay Research
• Bay Upgrades
• Network Store

Bay Upgrades are improvements you buy for one Relay Network Bay at a time, with Salvage and items. They only affect the Bay you bought them on. Relay Research is the network-wide counterpart.

Each upgrade has tiers; every tier costs more and does more, up to a maximum. Some upgrades only appear after a matching Research node.

Upgrades by Bay

Upgrade	Bays	Effect
Local Heat Resistance	Mint, Refinery, Recovery	Less heat on this Bay, and cooling goes further on it
Overclock Cooldown Reducer	Mint, Refinery, Recovery	Shorter wait between Overclocks
Module Capacity Expansion	Refinery, Cooling, Recovery	More Module slots
Mint Fuel Buffer Expansion	Mint	Bigger fuel buffer
Work Amplifier	Mint	Bigger Work payouts while fueled. Needs Work Coupling Research
Work Cooldown Destroyer	Mint	Chance to cut the Work cooldown while fueled. Needs Work Coupling Research
Refinery Output Capacity	Refinery	Bigger Salvage output buffer
Overdrive	Refinery	Burns item value much faster for slightly more Salvage and more heat
Deposit Category Slot	Refinery	More item categories in a deposit basket
Transmutation Speed, Transmutation Queue	Refinery	Faster Transmutation, and recipes that run back to back
Cooling Output Efficiency	Cooling	More cooling supply
Surge Capacitor	Cooling	Banks unused cooling for Bays recovering from an Overclock
Cut Potency, Lockout Reducer, Focus Slots, Quest Storage, Fuel Capacity	Recovery	Stronger and more frequent cooldown cuts, chosen targets, a bigger Quest Bank and fuel tank

The top tier of every Recovery upgrade also costs Pluperfect Gemeralds.

Changelog

Release date	Update	Changes
May 21, 2026	Welcome to the Relay Network	TL;DR Per-bay bay upgrades add local capacity, heat resistance, and quality-of-life perks. Salvage Bay upgrades (per-bay upgrades) Bay upgrades Bay upgrades Bay upgrades are local. Buying Local Heat Resistance on your Mint bay does not affect your Refinery bay. There are six upgrades in the catalog: Local Heat Resistance (10 tiers): up to 15 percent less heat on that bay. Overclock Cooldown Reducer (5 tiers): down from 10 minutes to 5. Mint Fuel Buffer Expansion (10 tiers, Mint only): bigger fuel reservoir. Module Capacity Expansion (5 tiers of plus 4 slots, max 25, Refinery only): more module slots. Refinery Output Capacity Expansion (10 tiers, Refinery only): bigger Salvage buffer. Refinery Deposit Category Slot (5 tiers, Refinery only): more custom category presets.

Guide: Relay Research and Transmutation

Bconomy