diff --git a/steam/steam-tests.ts b/steam/steam-tests.ts
new file mode 100644
index 000000000..4bca1059e
--- /dev/null
+++ b/steam/steam-tests.ts
@@ -0,0 +1,13 @@
+// Type definitions for steam
+// Project: https://github.com/seishun/node-steam
+// Definitions by: Andrey Kurdyumov <https://github.com/kant2002>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="steam.d.ts" />
+
+var bot = new Steam.SteamClient();
+bot.logOn({
+    accountName: 'username',
+    password: 'password'
+});
+bot.on('loggedOn', function () { /* ... */ });
diff --git a/steam/steam.d.ts b/steam/steam.d.ts
new file mode 100644
index 000000000..3f31aef3f
--- /dev/null
+++ b/steam/steam.d.ts
@@ -0,0 +1,64 @@
+// Type definitions for steam
+// Project: https://github.com/seishun/node-steam
+// Definitions by: Andrey Kurdyumov <https://github.com/kant2002>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module Steam {
+    export var servers: any;
+
+    export interface LogonOptions {
+        accountName: string;
+        password: string;
+        shaSentryfile?: string;
+        authCode?: string;
+    }
+
+    export enum EResult {
+        AccountLogonDenied
+    }
+
+    export enum EPersonaState {
+        Online
+    }
+
+    export enum EChatEntryType {
+        ChatMsg
+    }
+
+    export enum EChatMemberStateChange {
+        Kicked
+    }
+
+    export class SteamClient implements NodeJS.EventEmitter {
+        sessionId: string;
+        cookie: string[];
+        steamID: string;
+        users: {};
+
+        logOn(options: LogonOptions): void;
+        webLogOn(callback: (cookie: any[]) => void): void;
+
+        joinChat(chatId: string): void;
+        sendMessage(source: any, message: string, entryType: EChatEntryType): void;
+
+        setPersonaState(state: EPersonaState): void;
+        setPersonaName(name: string): void;
+
+        // Event emitter
+        addListener(event: string, listener: Function): NodeJS.EventEmitter;
+        on(event: string, listener: Function): NodeJS.EventEmitter;
+        once(event: string, listener: Function): NodeJS.EventEmitter;
+        removeListener(event: string, listener: Function): NodeJS.EventEmitter;
+        removeAllListeners(event?: string): NodeJS.EventEmitter;
+        setMaxListeners(n: number): void;
+        listeners(event: string): Function[];
+        emit(event: string, ...args: any[]): boolean;
+    }
+}
+
+declare module "steam" {
+    export = Steam;
+}
+