diff --git a/Sources/RandomKit/Types/RandomGenerator/ChaCha.swift b/Sources/RandomKit/Types/RandomGenerator/ChaCha.swift
index e17c78b..efc4a77 100644
--- a/Sources/RandomKit/Types/RandomGenerator/ChaCha.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/ChaCha.swift
@@ -33,10 +33,19 @@
 /// [2]: https://en.wikipedia.org/wiki/Salsa20#ChaCha_variant
 /// [3]: https://doc.rust-lang.org/rand/rand/chacha/struct.ChaChaRng.html
 public struct ChaCha: RandomBytesGenerator, Seedable, SeedableFromSequence, SeedableFromRandomGenerator {
-
     /// The seed type.
     public typealias Seed = [UInt32]
 
+    /// The seed value
+    public var seed: Seed {
+        return [
+            _state.0,  _state.1,  _state.2,  _state.3,
+            _state.4,  _state.5,  _state.6,  _state.7,
+            _state.8,  _state.9,  _state.10, _state.11,
+            _state.12, _state.13, _state.14, _state.15,
+        ]
+    }
+
     /// The seed sequence's element type.
     public typealias SeedSequenceElement = UInt32
 
diff --git a/Sources/RandomKit/Types/RandomGenerator/MersenneTwister.swift b/Sources/RandomKit/Types/RandomGenerator/MersenneTwister.swift
index b642ebf..a370705 100644
--- a/Sources/RandomKit/Types/RandomGenerator/MersenneTwister.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/MersenneTwister.swift
@@ -43,6 +43,10 @@
 ///
 /// [MT]: https://en.wikipedia.org/wiki/Mersenne_Twister
 public struct MersenneTwister: RandomBytesGenerator, Seedable, SeedableFromRandomGenerator {
+    /// The seed value.
+    public var seed: UInt64 {
+        return _state.0
+    }
 
     /// The number of `UInt64` values in a `_State`.
     private static let _stateCount: Int = 312
diff --git a/Sources/RandomKit/Types/RandomGenerator/Seedable.swift b/Sources/RandomKit/Types/RandomGenerator/Seedable.swift
index 0c06bd2..a39d35a 100644
--- a/Sources/RandomKit/Types/RandomGenerator/Seedable.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/Seedable.swift
@@ -31,6 +31,9 @@ public protocol Seedable {
     /// The seed type.
     associatedtype Seed
 
+    /// Current seed value.
+    var seed: Seed { get }
+
     /// Creates an instance from `seed`.
     init(seed: Seed)
 
diff --git a/Sources/RandomKit/Types/RandomGenerator/Xoroshiro.swift b/Sources/RandomKit/Types/RandomGenerator/Xoroshiro.swift
index 645a05f..28d3ff3 100644
--- a/Sources/RandomKit/Types/RandomGenerator/Xoroshiro.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/Xoroshiro.swift
@@ -46,6 +46,13 @@
 /// [1]: http://xoroshiro.di.unimi.it/
 /// [2]: http://xoroshiro.di.unimi.it/xoroshiro128plus.c
 public struct Xoroshiro: RandomBytesGenerator, Seedable, SeedableFromRandomGenerator {
+    /// The seed type.
+    public typealias Seed = (UInt64, UInt64)
+
+    /// The seed value.
+    public var seed: Seed {
+        return _state
+    }
 
     /// A default global instance seeded with `DeviceRandom.default`.
     public static var `default` = seeded
@@ -54,10 +61,10 @@ public struct Xoroshiro: RandomBytesGenerator, Seedable, SeedableFromRandomGener
     public static var defaultReseeding = reseeding
 
     /// The internal state.
-    private var _state: (UInt64, UInt64)
+    private var _state: Seed
 
     /// Creates an instance from `seed`.
-    public init(seed: (UInt64, UInt64)) {
+    public init(seed: Seed) {
         _state = seed
     }
 
diff --git a/Sources/RandomKit/Types/RandomGenerator/Xorshift.swift b/Sources/RandomKit/Types/RandomGenerator/Xorshift.swift
index e0f1c2c..f533380 100644
--- a/Sources/RandomKit/Types/RandomGenerator/Xorshift.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/Xorshift.swift
@@ -32,6 +32,13 @@
 /// [1]: http://www.jstatsoft.org/v08/i14/paper
 /// [2]: https://doc.rust-lang.org/rand/rand/struct.XorShiftRng.html
 public struct Xorshift: RandomBytesGenerator, Seedable, SeedableFromRandomGenerator {
+    /// The seed type.
+    public typealias Seed = (UInt32, UInt32, UInt32, UInt32)
+
+    /// The seed value.
+    public var seed: Seed {
+        return (x, y, z, w)
+    }
 
     /// A default global instance seeded with `DeviceRandom.default`.
     public static var `default` = seeded
@@ -49,7 +56,7 @@ public struct Xorshift: RandomBytesGenerator, Seedable, SeedableFromRandomGenera
     /// Creates an instance from `seed`.
     ///
     /// - precondition: `seed` is nonzero.
-    public init(seed: (UInt32, UInt32, UInt32, UInt32)) {
+    public init(seed: Seed) {
         (x, y, z, w) = seed
     }
 
diff --git a/Sources/RandomKit/Types/RandomGenerator/XorshiftStar.swift b/Sources/RandomKit/Types/RandomGenerator/XorshiftStar.swift
index e890d3d..0788353 100644
--- a/Sources/RandomKit/Types/RandomGenerator/XorshiftStar.swift
+++ b/Sources/RandomKit/Types/RandomGenerator/XorshiftStar.swift
@@ -29,7 +29,6 @@
 ///
 /// [1]: http://xoroshiro.di.unimi.it/xorshift1024star.c
 public struct XorshiftStar: RandomBytesGenerator, Seedable, SeedableFromRandomGenerator {
-
     /// The seed type.
     public typealias Seed = (
         UInt64, UInt64, UInt64, UInt64,
@@ -38,6 +37,11 @@ public struct XorshiftStar: RandomBytesGenerator, Seedable, SeedableFromRandomGe
         UInt64, UInt64, UInt64, UInt64
     )
 
+    /// The seed value.
+    public var seed: Seed {
+        return _state
+    }
+
     private typealias _State = _Array16<UInt64>
 
     private static var _jump: _State = (