Actions

Material save

Chance a processing action keeps its input materials. Half the double-gather rate per source, capped at 55%.

See it on the systems map

Rules and numbers

confirmed +0.5% per action source (MATERIAL_SAVE_PER_SOURCE), capped at MAX_MATERIAL_SAVE 55%.
Source: Constants.js:1274-1275
confirmed Same source pool as double gather with Thrift Beacons in place of Bounty; the Fortify Thrift talent and Collector (up to +10%) add flat inside the cap.save = min(0.55, (capePet + tools + milestones + thriftBeacons)*0.005 + talentPct/100 + collectorProgress*0.10 + excessSec*0.015)
Source: ClientState.js:2877
confirmed Each second of reduction past the 2.0 s floor adds 1.5%.
Source: Constants.js:1301
confirmed A save keeps the input only; it adds no task progress.
Source: ClientState.js:2475-2478
confirmed The cap rose from 50% to 55% in the 2026-09 rebalance.
Source: Constants.js:1266-1269; LoginScreen.js:101 (patch note)
inferred A save adds no XP and no speed, only fewer materials used; for XP per hour it is worth nothing.
Source: Follows from the save adding no progress (ClientState.js:2475-2478) and XP being paid per action

Connected systems

Material save is fed by overflow from Action time
Material save is raised by Thrift Beacons
Fortify talent tree raises Material save
Fortress Ledgers and Banners add sources to Material save
Skilling actions may proc Material save
Material save is raised by Tools

Arrows show who acts on whom: → this system acts on the other, ← the other acts on this one, ↔ both do.

More in Actions

Action time · Alms · Bank trips · Beacons · Double gather · Inventory and satchels · Movement speed · Pets · Potions · Scraps · Skilling actions · Sleep mode and offline time · Success chance · Teleport crystals · Telescopes · Tools · Vigor · XP per action

Statuses: confirmed is a value or rule in the game files; observed is measured from recorded play; dev note comes from a developer comment, tooltip or patch note; inferred is worked out from the files with the assumption stated; unknown is decided on the server. Game data read 2026-10-03.