Valve has announced a huge new update for its most popular title, DOTA 2. Dubbed DOTA 2 Reborn, the multiplayer online battle arena will be making the leap to a new game engine. Valve didn’t say anything on he specifics of the game engine, but it feels safe to assume this is the eagerly anticipated Source 2.

The DOTA 2 Reborn Beta is arriving soon, and it brings with it a brand new interface for DOTA 2, the new engine, and support for custom games. This includes a total replacement of DOTA 2’s game engine, redesigning the UI. This should mean support for custom maps and game-types will be coming, but it also signals Valve’s intent to move to a new engine - suggesting Left 4 Dead, Counter-Strike and perhaps Half-Life might not be far behind.

On today’s update page we will be giving you a preview of the new interface,” wrote Valve in a blog post. “Early next week we’ll be talking about Custom Games, and later that week we’ll conclude with various details about the new engine and launch the open beta. Throughout the beta we’ll be releasing frequent updates in order to fix bugs and make changes based on the feedback you provide. As you browse around in the new client, you’ll notice a few things that aren’t fully functional yet. Additionally, our focus has been on the dashboard so you’ll find the in-game HUD currently looks the same.

The revised UI coming to DOTA 2: Reborn will allow for easier party management among friends, including team merging and a party beacon to broadcast an available slot. On the eSports end, a new chat interface will included support for up to 5000 people chatting and viewing on a single match, with DOTA TV will have enhanced options for watching games.

Finally, in an effort to encourage new players to step into the immensely deep waters of DOTA 2, Valve is adding both tutorials and bot matches to allow players to get up to speed.

The DOTA 2 Reborn beta will be going live following the DOTA 2 International, which is taking place from August 3-8 in Seattle.