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Grounded
5/10

Tower Tap

One-thumb vertical tower climb where each floor introduces one rule (jump-only, duck-only, hold-to-glide) and you tap as fast as possible without touching the wrong tile type.

Core mechanic

Climb a tower one tap at a time, switching between jump/duck/hold inputs to match the floor's rule, racing a ghost opponent.

Controls

One thumb: tap, hold, swipe up — input changes per floor.

Theme

Rainbow-tiered tower floors echoing Rainbow Obby's many distinct modes (Ladder, Plane, Knockout, etc.) stripped into micro-rules.

Why now

Rainbow Obby's selling point is mode variety (10+ game modes); we compress that variety into per-floor rule twists instead of separate modes.

Signals · overall 5/10
Hook
5/10

Per-floor rule-switch is a genuine curiosity hook, but the 'Tower Tap' name is already taken (itch.io one-button stacker) and Rainbow Obby already sells mode-variety novelty on Poki, diluting the differentiation.Rainbow Obby already markets 10+ game modes as its hookExisting 'Tower Tap' game by happydale — name collision risk

Virality
5/10

Tap-timing stackers (Tower Stack, Tap Tap Dash) and obby racers are proven shareable, but 'fail at floor N' is now a commoditized mobile moment; the ghost-opponent race adds some moment-of-tension shareability but not a standout viral mechanic.Tap Tap Dash shows tap-tap stacker as a proven viral formatObby Rainbow Tower is a direct thematic competitor

Simplicity
6/10

One-thumb tap/hold/swipe is a clean input surface, but the per-floor rule change forces tutorialization/practice per new rule, raising cognitive load above pure one-tap games.Tap & timing noted as dominant but per-mode rule changes are NOT listed as top mechanics — suggesting added friction

Monetization
5/10

Hypercasual tap games monetize via interstitials + rewarded revives, and the ghost-opponent race creates a clean rewarded-video slot; however, Sensor Tower data shows mobile downloads shrinking and revenue flat ($82B 2025), meaning more crowded ad inventory per user.Confirms standard ad-monetized scaling pattern for one-thumb hypercasualSensor Tower: downloads continuing to shrink, revenue holding flat — harder CPI

Whitespace
3/10

Crowded: Rainbow Obby (Poki trending), Obby Rainbow Tower, the pre-existing Tower Tap on itch.io, Tap Tap Dash, and the broader tap-timing hypercasual category all occupy adjacent space; 'per-floor rule twist' is a thin wedge against mode-based obbies.Obby Rainbow Tower — direct tower-climb one-thumb competitor on PokiPoki's full obby category shows heavy saturation of climb/obstacle gamesName already taken by existing tap-stacker

Rainbow Obby · Trending on PokiPoki · 2026-07-18 (7d ago)