diff --git a/Sources/OnboardingKit/Documentation.docc/Extensions/OnboardingConditions.md b/Sources/OnboardingKit/Documentation.docc/Extensions/OnboardingConditions.md
index f3caf15..acb4619 100644
--- a/Sources/OnboardingKit/Documentation.docc/Extensions/OnboardingConditions.md
+++ b/Sources/OnboardingKit/Documentation.docc/Extensions/OnboardingConditions.md
@@ -6,6 +6,8 @@
 
 - ``ColdLaunch``
 - ``ManualCounter``
+- ``Once``
 - ``TimeSinceFirstLaunch``
 - ``AfterDate``
+- ``Conjunction``
 - ``Disjunction``
diff --git a/Sources/OnboardingKit/Documentation.docc/OnboardingKit.md b/Sources/OnboardingKit/Documentation.docc/OnboardingKit.md
index 69ddc1c..ebae09f 100644
--- a/Sources/OnboardingKit/Documentation.docc/OnboardingKit.md
+++ b/Sources/OnboardingKit/Documentation.docc/OnboardingKit.md
@@ -10,7 +10,7 @@ The top-level component of OnboardingKit is ``OnboardingManager``. Typically, yo
 
 An ``OnboardingManager`` instance contains a collection of onboarding events, which are represented as instances of the ``OnboardingEvent`` class. Each ``OnboardingEvent`` instance represents a particular event that might occur as the user uses your app. When an onboarding event occurs, OnboardingKit can notify your app in one of two ways: it can set a property on a ”flags” object (*i.e.*, an instance of a class that conforms to the ``OnboardingFlags`` protocol) that you specify, or it can just call a handler function that you provide.
 
-Each onboarding event contains a collection of onboarding conditions, which are structures that conform to the ``OnboardingCondition`` protocol. An event is triggered when **all** of its conditions are satisfied. All of the built-in conditions are contained in the ``OnboardingConditions`` namespace. To enable more dynamic onboarding flows, OnboardingKit provides a special ``OnboardingConditions/Disjunction`` condition that’s satisfied when **any** of its child conditions are satified.
+Each onboarding event contains a collection of onboarding conditions, which are structures that conform to the ``OnboardingCondition`` protocol. An event is triggered when **all** of its conditions are satisfied. All of the built-in conditions are contained in the ``OnboardingConditions`` namespace. To enable more dynamic onboarding flows, OnboardingKit provides a special ``OnboardingConditions/Disjunction`` condition that’s satisfied when **any** of its child conditions are satified as well as an ``OnboardingConditions/Conjunction`` condition that’s satisfied when **all** of its child conditions are satisfied, which is useful for nesting inside of a disjunction condition.
 
 Events must be intentionally checked to see if they have been triggered; OnboardingKit won’t update your UI unless some event is checked and determined to have occured. Currently, OnboardingKit provides two ways to check events: it can check them automatically every time your app launches, and it can check them when you manually call ``OnboardingManager/checkManually()``. Each event automatically determines the manner in which it’s checked, so it’s a good idea to call ``OnboardingManager/checkManually()`` whenever you think that an onboarding event could possibly have occured. More automated ways to check events may be added in the future.
 
diff --git a/Sources/OnboardingKit/OnboardingCondition.swift b/Sources/OnboardingKit/OnboardingCondition.swift
index 9d8b572..b47f286 100644
--- a/Sources/OnboardingKit/OnboardingCondition.swift
+++ b/Sources/OnboardingKit/OnboardingCondition.swift
@@ -163,6 +163,33 @@ public enum OnboardingConditions {
 		
 	}
 	
+	/// A condition that’s satisfied on the first cold launch and never again.
+	public struct Once: OnboardingCondition {
+		
+		public static var triggers: Set<OnboardingTrigger> = [.launch]
+		
+		public var isSatisfied: Bool {
+			get {
+				if UserDefaults.standard.bool(forKey: self.defaultsKey) {
+					return false
+				} else {
+					UserDefaults.standard.set(true, forKey: self.defaultsKey)
+					return true
+				}
+			}
+		}
+		
+		/// The key that’s used to store the Boolean flag for this condition with `UserDefaults`.
+		public let defaultsKey: String
+		
+		/// Creates a “once” condition.
+		/// - Parameter defaultsKey: The key that’s used to store the Boolean flag for this condition with `UserDefaults`.
+		public init(defaultsKey: String) {
+			self.defaultsKey = defaultsKey
+		}
+		
+	}
+	
 	/// A condition that checks how much time has passed since the first launch.
 	@available(iOS 15, macOS 12, watchOS 8, tvOS 15, *) public struct TimeSinceFirstLaunch: RegistrableOnboardingCondition {