Just like the old Warcraft 3 days, Valve is bringing with Reborn the possibility for people to create and host custom-made games. Those gamemodes will be playable within the DotA 2 Reborn client and accessible to everybody.
Some of those mods (e.g. Overthrow, Dota 2 Horde Mode, Pudge Wars etc.) already count hundreds of thousands of subscribers.
Will question about those mods be allowed and if yes how should they be tagged ?