diff --git a/server/src/game.rs b/server/src/game.rs
index 6e5207dd..caeb1e61 100644
--- a/server/src/game.rs
+++ b/server/src/game.rs
@@ -1,3 +1,5 @@
+use std::fs::File;
+
 use rand::prelude::*;
 use uuid::Uuid;
 
@@ -864,7 +866,12 @@ pub fn game_update(tx: &mut Transaction, game: &Game) -> Result<(), Error> {
     result.iter().next().ok_or(format_err!("game {:?} could not be written", game))?;
 
     if game.finished() {
-        info!("game finished state={:?}", game);
+        info!("finished id={:?}", game.id);
+
+        match game_json_file_write(&game) {
+            Ok(dest) => info!("wrote dest={:?}", dest),
+            Err(e) => error!("json write error={:?}", e),
+        };
 
         if let Some(i) = game.instance {
             instance_game_finished(tx, &game, i)?;
@@ -874,6 +881,12 @@ pub fn game_update(tx: &mut Transaction, game: &Game) -> Result<(), Error> {
     return Ok(());
 }
 
+fn game_json_file_write(g: &Game) -> Result<String, Error> {
+    let dest = format!("/var/lib/mnml/data/games/{}.mnml.game.json", g.id);
+    serde_json::to_writer(File::create(&dest)?, g)?;
+    Ok(dest)
+}
+
 pub fn game_skill(tx: &mut Transaction, account: &Account, game_id: Uuid, construct_id: Uuid, target_construct_id: Option<Uuid>, skill: Skill) -> Result<Game, Error> {
     let mut game = game_get(tx, game_id)?;
 
diff --git a/server/src/instance.rs b/server/src/instance.rs
index 4d69927a..92812673 100644
--- a/server/src/instance.rs
+++ b/server/src/instance.rs
@@ -1,3 +1,5 @@
+use std::fs::File;
+
 use uuid::Uuid;
 
 use serde_cbor::{from_slice, to_vec};
@@ -547,15 +549,26 @@ pub fn instance_update(tx: &mut Transaction, instance: Instance) -> Result<Insta
 
     result.iter().next().ok_or(err_msg("no instance row returned"))?;
 
-    // info!("{:?} wrote instance", instance.id);
+    trace!("{:?} wrote instance", instance.id);
 
     if instance.finished() {
-        info!("instance finished state={:?}", instance);
+        info!("finished id={:?}", instance.id);
+
+        match instance_json_file_write(&instance) {
+            Ok(dest) => info!("wrote dest={:?}", dest),
+            Err(e) => error!("json write error={:?}", e),
+        };
     }
 
     return Ok(instance);
 }
 
+fn instance_json_file_write(g: &Instance) -> Result<String, Error> {
+    let dest = format!("/var/lib/mnml/data/instances/{}.mnml.instance.json", g.id);
+    serde_json::to_writer(File::create(&dest)?, g)?;
+    Ok(dest)
+}
+
 pub fn instance_get(tx: &mut Transaction, instance_id: Uuid) -> Result<Instance, Error> {
     let query = "
         SELECT *