diff --git a/controller/release.js b/controller/release.js
new file mode 100644
index 0000000..d27e40b
--- /dev/null
+++ b/controller/release.js
@@ -0,0 +1,69 @@
+const Release = require('../models/Release');
+const {mongo} = require("mongoose");
+const {Magic, MAGIC_MIME_TYPE} = require("mmmagic");
+
+const allowedMimeTypes = {
+    "bk-plugin": ["application/java-archive"],
+    "bc-plugin": ["application/java-archive"],
+    "world": ["application/zip"],
+    "texturepack": ["application/zip"],
+    "config": ["text/plain"]
+}
+
+// Gets the mime type of the provided file
+const getMimeType = (file) => new Promise((resolve, reject) => new Magic(MAGIC_MIME_TYPE).detect(file, (err, result) => {
+    if (err) return reject(err);
+    resolve(result);
+}));
+
+// Gets a specific release by id
+module.exports.getReleaseById = async (id) => {
+    if (!mongo.ObjectId.isValid(id)) return null;
+    return await Release.findById(id).exec();
+}
+
+// Gets a specific release by the addon id & the version of the release
+module.exports.getReleaseByAddonId = async (addon_id, release_version) => {
+    if (!mongo.ObjectId.isValid(addon_id)) return null;
+    return await Release.findOne({addon_id, version: release_version}).exec();
+}
+
+// Gets all releases from an addon by id
+module.exports.getReleasesByAddonId = async (addon_id) => {
+    if (!mongo.ObjectId.isValid(addon_id)) return;
+    return await Release.find({addon_id}, {__v: 0}).exec();
+}
+
+// Gets the latest release from an addon by id
+module.exports.getLatestReleaseByAddonId = async (addon_id) => {
+    if (!mongo.ObjectId.isValid(addon_id)) return null;
+    return await Release.findOne({addon_id}).sort("-created").exec();
+}
+
+// Updates a specific release by id
+module.exports.updateReleaseById = async (id, changes) => {
+    if (!mongo.ObjectId.isValid(id)) return null;
+    return await Release.findByIdAndUpdate(id, changes).exec();
+}
+
+// Creates a new release
+module.exports.createRelease = async (addon_id, version, mc_versions, description) => {
+    if (!mongo.ObjectId.isValid(addon_id)) return null;
+    return await Release.create({addon_id, version, mc_versions, description});
+}
+
+// Removes all releases from an addon
+module.exports.removeAllReleases = async (addon_id) => {
+    if (!mongo.ObjectId.isValid(addon_id)) return null;
+    return await Release.deleteMany({addon_id}).exec();
+}
+
+// Checks if the provided file is in the list of allowed mime types
+module.exports.isValidReleaseFile = async (type, file) => {
+    let mimeConfig = allowedMimeTypes[type];
+    if (mimeConfig === undefined) return false;
+
+    const result = await getMimeType(file.data);
+
+    return mimeConfig.includes(result);
+}
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