diff --git a/Data/AppDbContext.cs b/Data/AppDbContext.cs
index 8d01707..a9d9e1a 100644
--- a/Data/AppDbContext.cs
+++ b/Data/AppDbContext.cs
@@ -54,7 +54,7 @@ public class AppDbContext : DbContext
             {
                 Id = 1,
                 CurrentPhase = Phase.Suggest,
-                UpdatedAt = DateTimeOffset.UtcNow
+                UpdatedAt = DateTimeOffset.UnixEpoch
             });
         });
     }
diff --git a/Data/Migrations/20260128134822_DeterministicAppStateSeed.Designer.cs b/Data/Migrations/20260128134822_DeterministicAppStateSeed.Designer.cs
new file mode 100644
index 0000000..f3f0bcb
--- /dev/null
+++ b/Data/Migrations/20260128134822_DeterministicAppStateSeed.Designer.cs
@@ -0,0 +1,178 @@
+// <auto-generated />
+using System;
+using GameList.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace GameList.Data.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260128134822_DeterministicAppStateSeed")]
+    partial class DeterministicAppStateSeed
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("GameList.Domain.AppState", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CurrentPhase")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("AppState");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CurrentPhase = 0,
+                            UpdatedAt = new DateTimeOffset(new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), new TimeSpan(0, 0, 0, 0, 0))
+                        });
+                });
+
+            modelBuilder.Entity("GameList.Domain.Player", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("DisplayName")
+                        .HasMaxLength(64)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Players");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Suggestion", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(500)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Genre")
+                        .HasMaxLength(50)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("PlayerId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ScreenshotUrl")
+                        .HasMaxLength(2048)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("YoutubeUrl")
+                        .HasMaxLength(2048)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PlayerId");
+
+                    b.ToTable("Suggestions");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Vote", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("PlayerId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Score")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("SuggestionId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SuggestionId");
+
+                    b.HasIndex("PlayerId", "SuggestionId")
+                        .IsUnique();
+
+                    b.ToTable("Votes");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Suggestion", b =>
+                {
+                    b.HasOne("GameList.Domain.Player", "Player")
+                        .WithMany("Suggestions")
+                        .HasForeignKey("PlayerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Player");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Vote", b =>
+                {
+                    b.HasOne("GameList.Domain.Player", "Player")
+                        .WithMany("Votes")
+                        .HasForeignKey("PlayerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("GameList.Domain.Suggestion", "Suggestion")
+                        .WithMany("Votes")
+                        .HasForeignKey("SuggestionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Player");
+
+                    b.Navigation("Suggestion");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Player", b =>
+                {
+                    b.Navigation("Suggestions");
+
+                    b.Navigation("Votes");
+                });
+
+            modelBuilder.Entity("GameList.Domain.Suggestion", b =>
+                {
+                    b.Navigation("Votes");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/Data/Migrations/20260128134822_DeterministicAppStateSeed.cs b/Data/Migrations/20260128134822_DeterministicAppStateSeed.cs
new file mode 100644
index 0000000..2de81bf
--- /dev/null
+++ b/Data/Migrations/20260128134822_DeterministicAppStateSeed.cs
@@ -0,0 +1,33 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GameList.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class DeterministicAppStateSeed : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.UpdateData(
+                table: "AppState",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "UpdatedAt",
+                value: new DateTimeOffset(new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), new TimeSpan(0, 0, 0, 0, 0)));
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.UpdateData(
+                table: "AppState",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "UpdatedAt",
+                value: new DateTimeOffset(new DateTime(2026, 1, 28, 13, 46, 23, 267, DateTimeKind.Unspecified).AddTicks(1749), new TimeSpan(0, 0, 0, 0, 0)));
+        }
+    }
+}
diff --git a/Data/Migrations/AppDbContextModelSnapshot.cs b/Data/Migrations/AppDbContextModelSnapshot.cs
index 22b6ab7..bfdea47 100644
--- a/Data/Migrations/AppDbContextModelSnapshot.cs
+++ b/Data/Migrations/AppDbContextModelSnapshot.cs
@@ -38,7 +38,7 @@ namespace GameList.Data.Migrations
                         {
                             Id = 1,
                             CurrentPhase = 0,
-                            UpdatedAt = new DateTimeOffset(new DateTime(2026, 1, 28, 13, 46, 23, 267, DateTimeKind.Unspecified).AddTicks(1749), new TimeSpan(0, 0, 0, 0, 0))
+                            UpdatedAt = new DateTimeOffset(new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified), new TimeSpan(0, 0, 0, 0, 0))
                         });
                 });
 
diff --git a/Domain/AppState.cs b/Domain/AppState.cs
index 3363e53..7caca35 100644
--- a/Domain/AppState.cs
+++ b/Domain/AppState.cs
@@ -4,5 +4,5 @@ public class AppState
 {
     public int Id { get; set; } = 1;
     public Phase CurrentPhase { get; set; } = Phase.Suggest;
-    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UnixEpoch;
 }