diff --git a/public/src/client/world.js b/public/src/client/world.js
index 08381b3255..8ab38a02c1 100644
--- a/public/src/client/world.js
+++ b/public/src/client/world.js
@@ -1,13 +1,46 @@
 'use strict';
 
-define('forum/world', ['topicList'], function (topicList) {
+define('forum/world', ['topicList', 'sort', 'hooks', 'alerts', 'api'], function (topicList, sort, hooks, alerts, api) {
 	const World = {};
 
 	World.init = function () {
 		app.enterRoom('world');
-
 		topicList.init('world');
+
+		sort.handleSort('categoryTopicSort', 'world');
+
+		handleIgnoreWatch(-1);
+
+		hooks.fire('action:topics.loaded', { topics: ajaxify.data.topics });
+		hooks.fire('action:category.loaded', { cid: ajaxify.data.cid });
 	};
 
+	function handleIgnoreWatch(cid) {
+		$('[component="category/watching"], [component="category/tracking"], [component="category/ignoring"], [component="category/notwatching"]').on('click', function () {
+			const $this = $(this);
+			const state = $this.attr('data-state');
+
+			api.put(`/categories/${cid}/watch`, { state }, (err) => {
+				if (err) {
+					return alerts.error(err);
+				}
+
+				$('[component="category/watching/menu"]').toggleClass('hidden', state !== 'watching');
+				$('[component="category/watching/check"]').toggleClass('fa-check', state === 'watching');
+
+				$('[component="category/tracking/menu"]').toggleClass('hidden', state !== 'tracking');
+				$('[component="category/tracking/check"]').toggleClass('fa-check', state === 'tracking');
+
+				$('[component="category/notwatching/menu"]').toggleClass('hidden', state !== 'notwatching');
+				$('[component="category/notwatching/check"]').toggleClass('fa-check', state === 'notwatching');
+
+				$('[component="category/ignoring/menu"]').toggleClass('hidden', state !== 'ignoring');
+				$('[component="category/ignoring/check"]').toggleClass('fa-check', state === 'ignoring');
+
+				alerts.success('[[category:' + state + '.message]]');
+			});
+		});
+	}
+
 	return World;
 });
diff --git a/public/src/modules/tagFilter.js b/public/src/modules/tagFilter.js
index d8a4557b70..f752b0df7e 100644
--- a/public/src/modules/tagFilter.js
+++ b/public/src/modules/tagFilter.js
@@ -144,7 +144,7 @@ define('tagFilter', ['hooks', 'alerts', 'bootstrap'], function (hooks, alerts, b
 
 		function loadList(query, callback) {
 			let cids = null;
-			if (ajaxify.data.template.category) {
+			if (ajaxify.data.template.category || ajaxify.data.template.world) {
 				cids = [ajaxify.data.cid];
 			// selectedCids is avaiable on /recent, /unread, /popular etc.
 			} else if (Array.isArray(ajaxify.data.selectedCids) && ajaxify.data.selectedCids.length) {
diff --git a/src/controllers/activitypub/topics.js b/src/controllers/activitypub/topics.js
index 6379c69057..87afe4862c 100644
--- a/src/controllers/activitypub/topics.js
+++ b/src/controllers/activitypub/topics.js
@@ -26,7 +26,23 @@ controller.list = async function (req, res) {
 	const start = Math.max(0, (page - 1) * topicsPerPage);
 	const stop = start + topicsPerPage - 1;
 
-	const sets = ['cid:-1:tids', `uid:${req.uid}:inbox`];
+	const sortToSet = {
+		recently_replied: `cid:-1:tids`,
+		recently_created: `cid:-1:tids:create`,
+		most_posts: `cid:-1:tids:posts`,
+		most_votes: `cid:-1:tids:votes`,
+		most_views: `cid:-1:tids:views`,
+	};
+
+	const [userPrivileges, tagData, userSettings, rssToken] = await Promise.all([
+		privileges.categories.get('-1', req.uid),
+		helpers.getSelectedTag(req.query.tag),
+		user.getSettings(req.uid),
+		user.auth.getFeedToken(req.uid),
+	]);
+	const sort = validSorts.includes(req.query.sort) ? req.query.sort : userSettings.categoryTopicSort;
+
+	const sets = [sortToSet[sort], `uid:${req.uid}:inbox`];
 	if (req.params.filter === 'all' || !req.uid) {
 		sets.pop();
 	} else if (req.params.filter) {
@@ -40,14 +56,7 @@ controller.list = async function (req, res) {
 		weights: sets.map((s, index) => (index ? 0 : 1)),
 	});
 
-	const [userPrivileges, tagData, userSettings, rssToken] = await Promise.all([
-		privileges.categories.get('-1', req.uid),
-		helpers.getSelectedTag(req.query.tag),
-		user.getSettings(req.uid),
-		user.auth.getFeedToken(req.uid),
-	]);
 	const targetUid = await user.getUidByUserslug(req.query.author);
-	const sort = validSorts.includes(req.query.sort) ? req.query.sort : userSettings.categoryTopicSort;
 
 	const data = await categories.getCategoryById({
 		uid: req.uid,
@@ -68,6 +77,8 @@ controller.list = async function (req, res) {
 
 	data.title = translator.escape(data.name);
 	data.privileges = userPrivileges;
+	data.selectedTag = tagData.selectedTag;
+	data.selectedTags = tagData.selectedTags;
 
 	data.breadcrumbs = helpers.buildBreadcrumbs([{ text: `[[pages:world]]` }]);
 	data['feeds:disableRSS'] = meta.config['feeds:disableRSS'] || 0;