Time (PSR Supplement)

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PSR is an alternate ruleset compatible with most 5e content.

System Differences

The Basics

Time
Shifts
Phases

The d20

Ability Check

Ability Scores

Strength
Dexterity
Constitution
Knowledge
Perception
Charisma

Saving Throws
Skills
Carry Slots

Encounters

Group Turns
Round‑Table Turns
Staggered Turns
Your Turn
Move
Action
Bonus Action
Reaction
Making an Attack
Unarmed Strike
Sunder
Defense
Cover

Hit Points & Damage

Temporary Hit Points
Massive Damage
Damage Types
Max Damage

Other Dangers

Defeat
Dramatic Death
Common Hazards
Extreme Climates
Conditions

Downtime

Downtime Trading
Downtime Enterprise

Items

Goods & Currency
Material Goods
Weapons
Improvised
Attire
Shields
Tools
Gear
Attunement

Objects

Damaging Objects
Hauling Objects
Vehicles
Artillery

NPCs

Mount
Cohort
Stat Blocks
Vulnerability, Resistance, & Immunity
Special Senses

Pocket-watch.png

By default, time in the game world flows similarly to that in the real world. But as with any story it might be helpful to squeeze in more detail for intense scenes—or sometimes do the opposite and summarize entire days or weeks in broad strokes.

How time flows in the game world is ultimately governed by your narrator, but it’s ideal to adapt the time rate to the needs of the campaign. Fitting the right time flow to the right situation can make or break the experience for players. Outside of the default free flow, some structured time flows include rounds, phases, shifts, and days.

Rounds. Combat and other moments of high-stakes action are narrated as encounters to make them easier to follow. Each encounter is divided into rounds, and each round represents about 6 seconds of the game world. During each round, normally the party gets a turn during which each protag can move and take one action; an enemy group or anyone working against the party also gets a turn. Since rounds are so tense, it can be beneficial for each creature to have its own turn, but during most other parts of an adventure it’s more fun for all players to be able to act at the same time.

Phases. Phases are each normally 10 minutes or so They're useful for describing the passage of time when time is still important, but not every single action needs to be detailed. This can often be during periods of exploration or interaction when time is of the essence, such as to complete an adventure before high tide, to prepare a town’s defense before a siege, or to navigate a dungeon before depleting resources run out.

Shifts. Optionally, each day of long-distance travel is divided into six shifts: 3 day shifts and 3 night shifts. Traveling can expose you to extreme climates, deadly encounters, or other hazards. Camping for a shift can partially recuperate you if you have food, water, and shelter but it isn't as restorative as a downtime day.

Days. During extensive periods, a rate of days can work best. Downtime normally takes an entire day, but is the most reliable way to completely recuperate from hard adventures. Downtime trading is a reliable way to sell loot and buy new gear.

Weeks. Often campaigns increase in scope as they progress. By later levels it is entirely reasonable for protags to manage a business, a guild, or even an entire city. When dealing with such large-scale agencies it can be useful to use a rate of weeks. Weeks might be used by some supplemental rules, but core content doesn't assume adventures will be run at this scale.

Even Longer. For campaigns of epic length it can be fun to go further. For example, each time your group meets up for an adventure, in the game-world your party might regroup after months or even years. In your world it might even be possible to travel through time.

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