Reputation

From Sci Wiki

Reputation, commonly abbreviated to "rep", is the basic currency of SCI - players can trade it in to buy upgrades, modify their inventions and call hits on other players.
A player has two types of reputation - unused reputation, which is avalible to spend, and total reputation, which is a player's net worth (including unused reputation) and determines reputation gains from combat and the potential size of bounties that Training Bot can place on that player.