Here’s the link to the three bundle options.

Achieve combined arms dominance with this battle-ready bundle from Wargaming.net, packed with vehicles and more lethal assets for the Steam versions of the free-to-play World of Tanks, World of Warplanes, and World of Warships. Batter opposing armor with the Elusive Menace Pack, which gives you access to the American T78 tank destroyer. Secure naval supremacy with the Texas Pack, which unlocks the titular American Tier V battleship. Bully the skies in your new heavy fighter with the Messerschmitt Me 210 Pack. Get all these, including bonuses like crew and hangar slots for each, as well as 6 other awesome Wargaming.net packs, and help support charity with your purchase!

Content in this bundle is compatible with the Steam versions of the games only. All base games are available separately.

You can always check out the most recent Humble Bundle offers here and here.