diff --git a/frontend/src/index.css b/frontend/src/index.css
index 49b6857..e8a7e7d 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -72,6 +72,10 @@ textarea:disabled {
   @apply dark:bg-slate-700 dark:text-slate-400;
 }
 
+.errorlist {
+  @apply mt-4 mb-1 pl-3 py-2 bg-red-600 text-slate-200 w-[300px];
+}
+
 @media screen and (min-width: 768px) {
   form input,
   select,
diff --git a/games/forms.py b/games/forms.py
index b92e8f5..19af792 100644
--- a/games/forms.py
+++ b/games/forms.py
@@ -58,7 +58,8 @@ class PurchaseForm(forms.ModelForm):
     related_purchase = forms.ModelChoiceField(
         queryset=Purchase.objects.filter(type=Purchase.GAME).order_by(
             "edition__sort_name"
-        )
+        ),
+        required=False,
     )
 
     class Meta:
@@ -82,6 +83,27 @@ class PurchaseForm(forms.ModelForm):
             "name",
         ]
 
+    def clean(self):
+        cleaned_data = super().clean()
+        purchase_type = cleaned_data.get("type")
+        related_purchase = cleaned_data.get("related_purchase")
+        name = cleaned_data.get("name")
+
+        # Set the type on the instance to use get_type_display()
+        # This is safe because we're not saving the instance.
+        self.instance.type = purchase_type
+
+        if purchase_type != Purchase.GAME:
+            type_display = self.instance.get_type_display()
+            if not related_purchase:
+                self.add_error(
+                    "related_purchase",
+                    f"{type_display} must have a related purchase.",
+                )
+            if not name:
+                self.add_error("name", f"{type_display} must have a name.")
+        return cleaned_data
+
 
 class IncludeNameSelect(forms.Select):
     def create_option(self, name, value, *args, **kwargs):
diff --git a/games/migrations/0030_alter_purchase_name.py b/games/migrations/0030_alter_purchase_name.py
new file mode 100644
index 0000000..25f96e5
--- /dev/null
+++ b/games/migrations/0030_alter_purchase_name.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.1.5 on 2023-11-15 12:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("games", "0029_alter_purchase_related_purchase"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="purchase",
+            name="name",
+            field=models.CharField(blank=True, default="", max_length=255, null=True),
+        ),
+    ]
diff --git a/games/models.py b/games/models.py
index c04323f..7ac16d8 100644
--- a/games/models.py
+++ b/games/models.py
@@ -2,6 +2,7 @@ from common.time import format_duration
 from datetime import datetime, timedelta
 from django.conf import settings
 from django.db import models
+from django.core.exceptions import ValidationError
 from django.db.models import F, Manager, Sum
 from zoneinfo import ZoneInfo
 
@@ -118,9 +119,7 @@ class Purchase(models.Model):
         max_length=2, choices=OWNERSHIP_TYPES, default=DIGITAL
     )
     type = models.CharField(max_length=255, choices=TYPES, default=GAME)
-    name = models.CharField(
-        max_length=255, default="Unknown Name", null=True, blank=True
-    )
+    name = models.CharField(max_length=255, default="", null=True, blank=True)
     related_purchase = models.ForeignKey(
         "Purchase",
         on_delete=models.SET_NULL,
@@ -147,6 +146,10 @@ class Purchase(models.Model):
     def save(self, *args, **kwargs):
         if self.type == Purchase.GAME:
             self.name = ""
+        elif self.type != Purchase.GAME and not self.related_purchase:
+            raise ValidationError(
+                f"{self.get_type_display()} must have a related purchase."
+            )
         super().save(*args, **kwargs)
 
 
diff --git a/games/static/base.css b/games/static/base.css
index 0dfa762..07970f4 100644
--- a/games/static/base.css
+++ b/games/static/base.css
@@ -1231,6 +1231,19 @@ textarea:disabled) {
   color: rgb(148 163 184 / var(--tw-text-opacity));
 }
 
+.errorlist {
+  margin-top: 1rem;
+  margin-bottom: 0.25rem;
+  width: 300px;
+  --tw-bg-opacity: 1;
+  background-color: rgb(220 38 38 / var(--tw-bg-opacity));
+  padding-top: 0.5rem;
+  padding-bottom: 0.5rem;
+  padding-left: 0.75rem;
+  --tw-text-opacity: 1;
+  color: rgb(226 232 240 / var(--tw-text-opacity));
+}
+
 @media screen and (min-width: 768px) {
   form input,
   select,