How to upgrade a multitool

Should you upgrade a tool or find one at S? Find one if damage is what you want, and check the type before you pay. An upgrade rolls a tool's base stats again, and for some types that roll is fixed low: an Alien or Experimental tool upgraded to S always lands at the floor of its damage. A tool found at S keeps its own roll. The numbers of a found tool are under multitool stats.

Where to upgrade

Any inhabited or abandoned space station will do. An abandoned station sells no technology, but it still upgrades a multitool. A pirate station does not offer it.

What an upgrade changes

The class goes up, the supercharged slots fill towards four, and the base stats come from a roll that belongs to the tool. Once the tool is in your hand that roll is fixed: upgrading from C or from B ends on one result, and you cannot roll again by paying again. To get another result you need another tool.

Damage after an upgrade

The first roll of a tool also picks its type, so the type limits where an upgrade can land.

TypeUpgraded to SFound at S
Alien25.0% to 25.5%26.5% to 35%
Experimental15.0% to 15.5%16.5% to 25%
Atlantid, yellow10% to 13.3%11.5% to 20%
Atlantid, plain13.3% to 16.7%11.5% to 20%
Atlantid, blue16.7% to 20%11.5% to 20%
Rifle15.2% to 20%15.8% to 20%
Sentinel32% to 50%34.7% to 50%
Royal15% to 25%24.8% to 25%
Staff33.8%28.8% to 50%
Base damage at class S. A pistol has none.

An Atlantid's colour tells you its damage before you pay. Rifles, Sentinels, and Royals spread over the whole range, so those are the ones worth hunting for a high result.

Staffs

Every staff upgraded at a station ends on one and the same base: 33.8% damage, 13.5% mining, and 44.3% scanner. Only a staff that is built at class S keeps its own roll, up to 50% damage.

An upgrade fills the empty supercharged slots, and you cannot choose where they land. Tetris figures shows where they fall.