diff --git a/src/games/trivia.js b/src/games/trivia.js
index ce3e311..5564f7b 100644
--- a/src/games/trivia.js
+++ b/src/games/trivia.js
@@ -17,11 +17,11 @@ const help = {
 let game = null;
 
 function scoreRound(context, round) {
-	if (game.answers.length === 0) {
+	if (game.answers.size === 0) {
 		return `No one scored in round ${round + 1}, better luck next time!`;
 	}
 
-	return game.answers.map(({ user }) => {
+	return Array.from(game.answers.values()).map(({ user }) => {
 		if (user) {
 			context.setPoints(user, 1);
 			game.points[user.username] = (game.points[user.username] || 0) + 1;
@@ -37,7 +37,7 @@ async function playRound(context, round = 0) {
 	const ac = new AbortController(); // eslint-disable-line no-undef
 	const now = new Date();
 
-	game.answers = [];
+	game.answers = new Map();
 	game.round = round;
 	game.ac = ac;
 
@@ -80,7 +80,7 @@ async function playRound(context, round = 0) {
 		return;
 	}
 
-	if (game.answers.length === 0) {
+	if (game.answers.size === 0) {
 		context.sendMessage(`**TIME'S UP!** No one guessed the answer: **${question.answer}**`, context.room.id);
 	} else {
 		const scores = scoreRound(context, round);
@@ -185,8 +185,8 @@ async function onMessage(message, context) {
 
 	const { answer, fullAnswer } = game.questions[game.round];
 
-	if (new RegExp(answer, 'i').test(decode(message.originalBody || message.body))) { // resolve HTML entities in case original body is not available, such as & to &
-		game.answers.push({
+	if (new RegExp(answer, 'i').test(decode(message.originalBody || message.body)) && !game.answers.has(context.user.id)) { // resolve HTML entities in case original body is not available, such as & to &
+		game.answers.set(context.user.id, {
 			user: context.user,
 			answer: message.body,
 		});