diff --git a/packages/shared/src/ws-messages.ts b/packages/shared/src/ws-messages.ts
index 722501e..f62a32b 100644
--- a/packages/shared/src/ws-messages.ts
+++ b/packages/shared/src/ws-messages.ts
@@ -1,5 +1,6 @@
 import { z } from "zod"
 import { ACTS } from "./constants"
+import { gameStateSchema, dishSchema } from "./game-types"
 import { playerSchema, roomStateSchema } from "./room-types"
 
 // ─── Client → Server ───────────────────────────────────────────────
@@ -22,12 +23,41 @@ export const endRoomMessage = z.object({
 	type: z.literal("end_room"),
 })
 
+// ─── Client → Server (Act 1 games) ─────────────────────────────────
+
+export const submitPredictionMessage = z.object({
+	type: z.literal("submit_prediction"),
+	predictedWinner: z.string(),
+	top3: z.array(z.string()).length(3),
+	nulPointsPick: z.string(),
+})
+
+export const addDishMessage = z.object({
+	type: z.literal("add_dish"),
+	name: z.string().min(1).max(100),
+	correctCountry: z.string(),
+})
+
+export const submitDishGuessMessage = z.object({
+	type: z.literal("submit_dish_guess"),
+	dishId: z.string().uuid(),
+	guessedCountry: z.string(),
+})
+
+export const revealDishesMessage = z.object({
+	type: z.literal("reveal_dishes"),
+})
+
 /** Union of all client → server messages (room system only — games add more) */
 export const clientMessage = z.discriminatedUnion("type", [
 	joinRoomMessage,
 	reconnectMessage,
 	advanceActMessage,
 	endRoomMessage,
+	submitPredictionMessage,
+	addDishMessage,
+	submitDishGuessMessage,
+	revealDishesMessage,
 ])
 
 export type ClientMessage = z.infer<typeof clientMessage>
@@ -69,6 +99,45 @@ export const errorMessage = z.object({
 	message: z.string(),
 })
 
+// ─── Server → Client (Act 1 games) ─────────────────────────────────
+
+export const gameStateMessage = z.object({
+	type: z.literal("game_state"),
+	gameState: gameStateSchema,
+})
+
+export const predictionsLockedMessage = z.object({
+	type: z.literal("predictions_locked"),
+})
+
+export const dishAddedMessage = z.object({
+	type: z.literal("dish_added"),
+	dish: dishSchema,
+})
+
+export const dishGuessRecordedMessage = z.object({
+	type: z.literal("dish_guess_recorded"),
+	dishId: z.string().uuid(),
+	guessedCountry: z.string(),
+})
+
+export const dishesRevealedMessage = z.object({
+	type: z.literal("dishes_revealed"),
+	results: z.array(
+		z.object({
+			dish: dishSchema,
+			guesses: z.array(
+				z.object({
+					playerId: z.string().uuid(),
+					displayName: z.string(),
+					guessedCountry: z.string(),
+					correct: z.boolean(),
+				}),
+			),
+		}),
+	),
+})
+
 /** Union of all server → client messages (room system only) */
 export const serverMessage = z.discriminatedUnion("type", [
 	roomStateMessage,
@@ -78,6 +147,11 @@ export const serverMessage = z.discriminatedUnion("type", [
 	actChangedMessage,
 	roomEndedMessage,
 	errorMessage,
+	gameStateMessage,
+	predictionsLockedMessage,
+	dishAddedMessage,
+	dishGuessRecordedMessage,
+	dishesRevealedMessage,
 ])
 
 export type ServerMessage = z.infer<typeof serverMessage>