diff --git a/assets/schema.json b/assets/schema.json
index e69de29..c33fab2 100644
--- a/assets/schema.json
+++ b/assets/schema.json
@@ -0,0 +1,137 @@
+
+
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "properties": {
+    "games": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "name": {
+              "type": "string"
+            },
+            "players": {
+              "type": "null"
+            },
+            "group": {
+              "type": "null"
+            },
+            "winner": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "id",
+            "name",
+            "players",
+            "group",
+            "winner"
+          ]
+        }
+      ]
+    },
+    "groups": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "name": {
+              "type": "string"
+            },
+            "members": {
+              "type": "array",
+              "items": [
+                {
+                  "type": "object",
+                  "properties": {
+                    "id": {
+                      "type": "string"
+                    },
+                    "name": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "name"
+                  ]
+                },
+                {
+                  "type": "object",
+                  "properties": {
+                    "id": {
+                      "type": "string"
+                    },
+                    "name": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "name"
+                  ]
+                }
+              ]
+            }
+          },
+          "required": [
+            "id",
+            "name",
+            "members"
+          ]
+        }
+      ]
+    },
+    "players": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "name": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "id",
+            "name"
+          ]
+        },
+        {
+          "type": "object",
+          "properties": {
+            "id": {
+              "type": "string"
+            },
+            "name": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "id",
+            "name"
+          ]
+        }
+      ]
+    }
+  },
+  "required": [
+    "games",
+    "groups",
+    "players"
+  ]
+}
+