The multiplayer beta for Warcraft 3: Reforged has started, letting players have matches in 1v1 and 2v2. There will be limited access to various races, and more game modes will be accessible as the beta goes on.
Blizzard announced the beta was starting with a news post, outlining what everyone who has access can expect. Only orcs and humans are selectable at first, as the undead and night elf races will be added at a later time. Those who pre-ordered the ‘Spoils of War’ edition are getting keys first, while regular pre-orders will have to wait as access is sent out in waves into the coming weeks. Wording suggests the beta map become completely open at some point down the line, but at the very least that’ll be when pre-orders are honored.
If getting into the beta ASAP isn’t quite worth the money for you, the ‘Spoils of War’ contains a number of special bonuses. There’s exclusive skins for Reforged – Champion of the Horde Thrall, Emerald Nightmare Cenarius, Fallen King Arthas, and Daughter of the Seas Proudmoore – the Meat Wagon mount for World of Warcraft, the Third War card back for Hearthstone, a new pet for Diablo 3, and other content for Heroes of the Storm and Overwatch.
Original source: https://www.pcgamesn.com/warcraft-iii/beta