Dose Doubler

Dose Doubler is a calm, satisfying merge puzzle that's built around one twist nobody else has: you steer every chain. Tap an empty tile to drop your current pill. If it lands next to a matching pill, they auto-merge into the next tier. From there, you take over: pills glow, you swipe between them, and the one you swipe TOWARD is where the chain combines next. You're not at the mercy of a board tilt — every step is a decision. Climb the tier ladder ten levels deep, from a humble Tablet to the legendary Panacea. Set up satisfying chains, multiplied at ×1.2, ×1.5, and ×2. Watch out for contaminated tiles and biohazard pills — they'll wreck a careless run, but a well-placed sandwich merge clears them with a 1.5× score bonus. FEATURES • 5×5 board, one-handed play, runs that fit in a single coffee break • Tap-to-place + swipe-to-steer — original mechanic, not another 2048 reskin • Ten hand-illustrated tiers with custom particle bursts on the big merges • Daily Challenge — the same seeded run for every player, every day, with streak tracking • Easy / Normal / Hard difficulty • Game Center leaderboards (all-time + daily) and sixteen achievements • Cross-run stats: best score, top tier, longest chain, total merges, tier distribution • Sound and haptic feedback (toggleable) • No accounts, no internet required for core play, no spam notifications CALM BY DESIGN No timers. No energy gates. No five-pop-up tutorial. Drop in, play a run, drop out. For entertainment only. Not medical advice.