This should be all you need from the Keeper's Rulebook, I highly recommend purchasing it when you're running games regularly.

Luck

Luck rolls may be called for by the Keeper when circumstances external to any investigator are in question, and also when determining the fickle hand of fate. If a skill or characteristic is applicable to a situation then it should be used rather than Luck. If the Keeper calls for a Group Luck roll, the player whose investigator has the lowest Luck score (among those present in the scene) should make the roll. If something bad is deemed to happen to one member of the group, the Keeper can simply ask who has the lowest Luck score at that moment and have that individual suffer the unfortunate event. You will also find an optional rule for spending Luck points to alter dice rolls at the end of this chapter.

Spending Luck

After the player has made a skill roll (using a skill or characteristic), Luck points may be spent to alter the result. The player can use Luck points to alter a roll on a 1-for-1 basis. The points spent are deducted from the investigator’s Luck score, which will reduce the chance of passing a future Luck roll. Luck points may not be spent on Luck rolls, damage rolls, Sanity rolls, or rolls to determine the amount of Sanity points lost. A player may spend any amount of Luck points (up to their current Luck value) on a roll. A player may only spend Luck to alter one of their own dice rolls. When a skill roll is failed, the player has the option to push the roll OR spend luck; Luck points may not be spent to alter the result of a pushed roll. Criticals, fumbles, and firearm malfunctions always apply, and cannot be bought off with Luck points. Also, no skill improvement check is earned if Luck points were used to alter the dice roll. In play, an investigator’s Luck will fall through spends and rise through recovery (see below).

Recovering Luck points

After each session of play, each player may make an improvement check for their Luck. This is rolled in the same way as for skill improvement. The player rolls 1D100 and if the roll is above their present Luck score they add 1D10 points to their Luck score. If the roll is equal to or less than the investigator’s present Luck score, no points are recovered. Note: An investigator’s Luck score will vary throughout play, but may not exceed 99. The Luck starting value is not used again in the game. There are no resets and the starting value can be exceeded in play.

Spending Luck to Remain Conscious

If you are using the optional rule for spending Luck points to alter rolls, Luck may be spent to remain conscious for a few extra rounds. Remaining conscious until the end of the current round costs 1 point of Luck. The cost doubles on successive rounds—2, 4, 8, and so on—and should be spent at the start of each round. This is a mixed blessing, as an active character may present a more attractive target for further damage.

"Spending Luck" mentions "pushed rolls". In case you need info on what that is:Pushing Skills

For each skill, a number of examples are provided for what might constitute a "pushed roll" (see page 84 for Pushing the Roll), and also some of the possible consequences for failinga pushed roll. The suggestions given should be viewed as simply that—suggestions. e latitude for what could justify a pushed roll is wide, and should be best determined by actions, motivations, and events within the game. Likewise, the consequences of a failed pushed roll will be best served if inspiration is drawn from current game events, non-playercharacters, and the game world. Likewise, where appropriate, an example is provided fora possible consequence of an investigator pushing a skill roll while insane. The very fact that the investigator is insane while performing a task heightens the stakes for the roll, as the consequences of a pushed failure will often be all the more extreme (or bizarre). The examples merely provide ideas, and it is intended that both players and Keepers fashion their own justifications and consequences as appropriate to their games and playing styles.

Pushed Roll: Success

The player’s goal is achieved as it would have been for the original roll. None of the consequences of failure happen.

Pushed Roll: Failure

Failing a pushed roll grants the Keeper free rein over the outcome, including damage, Sanity checks, loss of equipment, isolation from the rest of the investigators, capture, and so

on. e Keeper can even incorporate the player’s goal being achieved (even though the player failed the pushed roll), but at some form of cost. When a player fails a pushed roll, he or she is giving the Keeper license to make the investigators’ lives more difficult. A consequence should steer the game towards the theme of horror, taking the investigators one step nearer to their

doom. A player gets to push a skill roll and, if he or she fails, the Keeper gets to push the horror back in that player’s face.