Anything that you might attempt will require an action to perform. Actions are measured according to the amount of time that they require. For actions normally performed during exploration, rests or down-time, this time is measured in minutes, hours or even days. However, in combat, time is measured in seconds.

On your turn, you may take actions totaling up to six seconds. In addition, you receive one Reaction per round, which is replenished at the start of your turn.

You may take as many free actions as you wish. However, free actions typically have a trigger or requirement that must be met to use them. Each free action can be used only once per trigger. However, if you have multiple free actions with the same trigger, you may use all of them when that trigger occurs.

Free actions may be taken outside of your turn.

Reactions are similar to Free Actions in that they have a trigger that must be met. However, you can only take one reaction per round.

Your reaction replenishes at the start of your turn, and you do not receive a reaction when combat starts until the start of your first turn.

Standard actions can take anywhere from one to six seconds. You can take any combination of actions on your turn, as long as their total duration is exactly six seconds.

The following actions are always available to a character, regardless of their class. However, some may require that the character be trained in a skill.

Aim
Avoid Falling Damage
Balance
Bond with a Mount
Break Free
Calm A Foe
Cast a Spell
Change Equipment
Charge
Climb a Surface
Convince Another of an Untruth
Counterattack
Coup de Grace
Craft a Concoction
Craft an Item
Direct a Mount
Disable a Device
Disarm
Earn Income
End a Spell
Enter An Occupied Square
Feint
Forge a Document
Frighten a Foe
Gain a Level
Gather Information
Grab
Help Another
Hide
Hold Out
Impersonate Another
Jump
Keep a Watch
Make an Impression
Make a Request
Mount a Steed
Perform an Investigation
Raise a Shield
Read an Opponent
Ready an Action
Recall Information
Recover Stamina
Repair an Item
Run
Search
Shake It Off
Shield Bash
Shove
Smash Something
Sneak
Squeeze Through
Stabilize an Ally
Stand Up
Stay Afloat
Steel Your Resolve
Step
Subdue a Foe
Sustain a Spell
Take a Long Rest
Take a Short Rest
Take Down Time
Track a Creature
Translate Writing
Travel Overland
Treat a Condition
Treat Wounds
Trip
Wake Another
Walk