diff --git a/card_game/src/lib.rs b/card_game/src/lib.rs
index 70f16a0..0dd30bb 100644
--- a/card_game/src/lib.rs
+++ b/card_game/src/lib.rs
@@ -422,6 +422,10 @@ pub enum SessionInstruction<I> {
 }
 
 #[derive(Clone, Debug, Default)]
+#[cfg_attr(
+	feature = "serde",
+	derive(serde_derive::Deserialize, serde_derive::Serialize)
+)]
 pub struct SessionStats<S> {
 	inner: S,
 	undos: u32,
@@ -438,6 +442,10 @@ impl<S> SessionStats<S> {
 	}
 }
 #[derive(Clone, Debug)]
+#[cfg_attr(
+	feature = "serde",
+	derive(serde_derive::Deserialize, serde_derive::Serialize)
+)]
 pub struct SessionConfig<C> {
 	pub inner: C,
 	pub undo_penalty: i32,
@@ -461,12 +469,26 @@ impl<C: Default> Default for SessionConfig<C> {
 }
 
 #[derive(Clone, Debug)]
+#[cfg_attr(
+	feature = "serde",
+	derive(serde_derive::Deserialize, serde_derive::Serialize),
+	serde(bound = "
+		G: serde::Serialize + for <'a> serde::Deserialize<'a>,
+		G::Stats: serde::Serialize + for <'a> serde::Deserialize<'a>,
+		G::Config: serde::Serialize + for <'a> serde::Deserialize<'a>,
+		Vec<StateSnapshot<G>>: serde::Serialize + for <'a> serde::Deserialize<'a>,
+	")
+)]
 pub struct Session<G: Game> {
 	stats: SessionStats<G::Stats>,
 	config: SessionConfig<G::Config>,
 	state: SessionState<G>,
 }
 #[derive(Clone, Debug)]
+#[cfg_attr(
+	feature = "serde",
+	derive(serde_derive::Deserialize, serde_derive::Serialize)
+)]
 pub struct StateSnapshot<G: Game> {
 	state: G,
 	instruction: G::Instruction,
@@ -480,6 +502,14 @@ impl<G: Game> StateSnapshot<G> {
 	}
 }
 #[derive(Clone, Debug)]
+#[cfg_attr(
+	feature = "serde",
+	derive(serde_derive::Deserialize, serde_derive::Serialize),
+	serde(bound = "
+		G: serde::Serialize + for <'a> serde::Deserialize<'a>,
+		Vec<StateSnapshot<G>>: serde::Serialize + for <'a> serde::Deserialize<'a>,
+	")
+)]
 pub struct SessionState<G: Game> {
 	state: G,
 	history: Vec<StateSnapshot<G>>,