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Grounded
6/10

Hero Swipe Rally

Send chibi heroes into auto-battling dungeon waves by swiping them into formation, then crack open loot chests between rounds to pull new companions.

Core mechanic

Swipe heroes into a 3-slot formation, they auto-attack the next wave, then tap a chest to spin the gacha pull for new heroes that unlock bonus DPS.

Controls

One-thumb: swipe horizontally to cycle heroes into squad slots, tap to open chest, hold to summon ultimate.

Theme

MMORPG gacha fantasy with chibi 3D heroes, launcher banners, and the "1,234 Draw Event" hoarding energy.

Why now

Whoa Adventure hit #5 free in DE just 11 hours before the app store crawl, with a launch gacha frenzy driving the trend.

Signals · overall 6/10
Hook
6/10

Chibi hero + auto-battle dungeon + gacha pull chest is a well-trodden but proven combo; Whoa Adventure by Joy Net Games is live on the App Store, confirming the trend is real, but it leans on a highly familiar idle-RPG fantasy template rather than a fresh angle.Whoa Adventure live on App Store by Joy Net Games, confirming source trend existsIdle RPG fantasy theme consistently anchors top-grossing mobile titles

Virality
5/10

Gacha chest pulls and rare-SSR reveals travel on TikTok/Reddit, but horizontal swipe-to-form and auto-attacking waves produce no standout shareable clip moment compared to skill-based viral hypercasual.Auto-battler library is large and differentiated by meta, not by clip-worthy momentsTop auto-battlers (TFT-style, Backpack Brawl) drive engagement via PvP, not raw virality

Simplicity
8/10

Three-slot swipe formation + tap chest + hold ultimate is a genuinely one-thumb, single-screen loop with minimal animation/asset scope — very cheap to prototype and playable.Heroes Auto Battle exemplifies how minimal the touch input layer needs to be

Monetization
7/10

Idle RPG and gacha-pull loops are top-tier revenue generators on mobile (Sensor Tower tracks a dedicated top-5 idle RPG revenue leaderboard), with rewarded ads for chest cooldowns and IAP/gacha standard.Sensor Tower maintains a top-5 idle RPG revenue chart, indicating strong monetization tierAuto-battler games market valued at $3.8B in 2025, projected $9.6B by 2034

Whitespace
3/10

Space is crowded — Whoa Adventure already occupies the exact swipe-hero auto-battler gacha niche, plus AFK Arena, CookieRun: Kingdom, Heroes Auto Battle, Ultimate Auto-RPG: Tower Walker and dozens more compete for the same player.Direct competitor already shipping the same core loop by Joy Net GamesMultiple indie auto-RPG titles using identical auto-battler + chest-pull formulasHeroes Auto Battle directly competes on hero auto-battler positioning

Whoa Adventure · #5 top free · DE · Joy Net GamesApp Store · 2026-07-29 (today)
Hero Swipe Rally — HypercasualGames