Stack 101 Tower vs Flowduct

Stack 101 Tower: The Boba Challenge Eyes of a Hawk. Hands of a God. Can you reach 101? Stop playing casual. Stack 101 Tower is the ultimate test of precision and speed. No more excuses—without razor-sharp eyesight and lightning reflexes, you'll never survive the climb. • God-Tier Precision: One pixel off, and it’s game over. Only the elite can maintain the balance. • Rapid Reflexes: The higher you go, the faster it gets. Do you have the speed to keep up? • The Ultimate Reward: Only a true Stacking King can reach Floor 101 to claim the legendary Pearl Milk Tea. The Boba is at the top. Are you fast enough to take it?

Most pipe games only ask you to finish. Flowduct asks you to finish perfectly. Every board is built with a solution the game can prove, so Flowduct knows the exact minimum number of turns it takes — and dares you to match it. Beat that number and you earn a Perfect Flow. THE PAR THAT MAKES IT A PUZZLE, NOT A CHORE - See the exact minimum number of turns for your board, live, before you make a single move - Earn three stars only by matching it, so a win always means something - Watch your lifetime turn efficiency climb as you stop wasting moves - Track how many turns you have thrown away, and shrink the number SIMPLE TO PICK UP, HARD TO PERFECT - Tap a pipe to rotate it right, hold it to rotate it left - Water fills the pipes the instant they line up, so you always see your progress - A live leak counter tells you how many open ends are still spilling - Elbows, straights, tees, crosses and end caps, and every one of them matters - No timers pushing you, no lives to run out, no move limit to fail - Undo nothing and restart anything: a board is never lost, only unfinished 100 HAND-TUNED LEVELS ACROSS FIVE DISTRICTS - Start in Wellspring on gentle 3x3 grids and finish in Skyline on sprawling 8x9 networks - Deepwater and Skyline add wrap-around boards, where pipes leaving one edge reappear on the other and your sense of direction stops helping you - Every level is a fresh layout, never a reskin of the last one - Endless Zen flow when you want to solve without stars or scores A DAILY PIPELINE FOR EVERYONE - One board a day, identical for every player on earth - Build a streak and watch your month fill in on the calendar - Sundays turn into wrap-around boards, so the week has a rhythm - Share your turns and streak with one tap STATS THAT ACTUALLY TELL YOU SOMETHING - Lifetime turn efficiency, wasted turns and perfect solves, all from real play - An efficiency trend chart that shows whether you are genuinely improving - A consistency heatmap of the last 15 weeks - This week against last week, your best day of the week, and personal records - 40 badges across 10 families, from your first solve to your hundredth streak day PERFECT FOR - Anyone who likes a logic puzzle with a right answer, not a lucky one - Players who want a calm game for a coffee break or a commute - People who left other pipe games because winning felt like an accident - Anyone looking for a daily brain workout that takes five quiet minutes - Players who prefer thinking to tapping, and patience to reflexes - Long flights, waiting rooms, the underground: it never needs a signal YOURS, AND ONLY YOURS - Works fully offline, every level, every day, forever - No account, no login, no sign-up, nothing to remember - No subscription and no paywall between you and level 100 - Your progress, streak and stats stay on this device and are never uploaded - Available in English, Spanish, French, German, Italian and Portuguese Flowduct is the pipe puzzle for people who want to know they solved it, not just that they got through it. Rotate the pipes, fill the network, chase the par. The first boards take a few seconds and teach you to read the shapes. By the fifth district you are holding half a network in your head, working out which corner has to be wrong before you touch anything. The rules never change. Only you get better at them, and the efficiency chart is there to prove it. Download Flowduct and find out how few turns you really need.