THE ULTIMATE WB HERO COLLECTION RPG
Brain has accessed the Warner Bros multiverse and released them all!

For the first time ever, animated legends of Warner Bros., DC, and Cartoon Network collide in one epic hero collection Casual Idle RPG. Build your dream squad, battle through iconic worlds, and defend the Cartooniverse.

COLLECT ICONIC HEROES FROM 9 LEGENDARY WORLDS
Justice League Unlimited • Looney Tunes • Adventure Time • Scooby-Doo • Steven Universe • Teen Titans Go! • The Powerpuff Girls • Samurai Jack • Animaniacs
Summon and collect Batman, Superman, Bugs Bunny, Finn & Jake, Scooby-Doo, Steven Universe, Raven, the Powerpuff Girls, Samurai Jack, and dozens more, each featuring Basic, Critical, and Special attacks inspired from their iconic powers, personalities, and adventures.

EASY TO PLAY, EVEN WHILE YOU’RE AWAY
Set your squad and let your heroes fight for you—go about your day, check in, collect your rewards, and level up at your own pace.
AFK-friendly progression: Earn rewards even when you're not playing
Auto-battle combat system for stress-free RPG action
Simple, satisfying, squad-building mechanics for collector and RPG fans

BUILD & UPGRADE YOUR DREAM SQUAD
Collect heroes and assign up to 8 per squad. Mix iconic characters for unique combos
Rank up, level, and unlock talents to grow your roster
Unlock hero costumes and rare legendary heroes with explosive special attacks
Collect Vehicles (Batmobile, Mystery Machine & more) and Artifacts like Finn's Sword and Scooby Snacks for team-wide buffs

EXPLORE, BATTLE & CONQUER
Daily Dungeons and an ever-growing Tower for endless progression
Epic Boss Fights across familiar WB worlds
Alliance Wars & Alliance Raids: team up with friends and guildmates. Enjoy Leaderboards, Chat, and Friend Gifting built for social RPG fans

HEROES THAT POP OFF THE SCREEN
Watch each hero unleash punchy effects and cinematic Special attacks—animation that feels like your favorite Saturday-morning cartoons teaming up and brought to life.

FREE TO PLAY, FOREVER
WB All-Star Mayhem is completely free to download and play. Collect heroes, build your squad, and rise through the ranks.
Whether you grew up on Cartoon Network and Looney Tunes, or you're already a fan of hero collectors, RPG builders, and auto-battle adventures, WB All-Star Mayhem is the easiest way to build the ultimate crossover squad and relive your favorite cartoons in a whole new way.

DOWNLOAD NOW and start your RPG adventure across the Warner Bros. animated multiverse!

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