Flow Out: The Train Puzzle

The rail yard is jammed and every delivery is late. Coal, water, hydrogen and timber; The whole island is counting on YOU, dispatcher.

FlowOut is a relaxing arrow puzzle: every train on the board is an arrow, locked to one direction, and one tap sends it rolling straight off the edge. Simple to learn, deeply satisfying to untangle.

Sounds simple? Trains block each other, so every level is a knot to untangle. Find the right order and watch the yard flow empty !

#SIMPLE TO PLAY, SATISFYING TO MASTER
• One tap sends a train on its way — no controls to learn
• Up to 3 trains moving at once — chain launches for combo scores
• A blocked train costs a heart; keep all 3 for the perfect run

#120 HAND-TUNED ARROW LIKE PUZZLES
• Four Cargo Lines: Hydrogen Line, Timber Forest, Coal Yard, Water Docks
• Winding multi-car trains, weathervane trains that flip direction, and tight interlocked yards
• Every level is solver-verified: there is ALWAYS a way out

# FIVE STARS TO CHASE ON EVERY LEVEL
• Clear the yard • Keep all hearts • Deliver the City Order • Beat the target time • Beat the FAST time

# CITY ORDER
The city wants its cargo in a specific sequence — deliver in order before the clock runs out for a bonus star.

# CARGO IN CRISIS
On some levels, disaster strikes: heat waves ignite the coal, tankers crack, pressure builds, bandits close in. Save the at-risk cargo before the timer — or watch it go up in flames.

# KEEP COMING BACK
• Daily Challenge and Daily Chest rewards
• Play streaks with a gentle daily reminder
• Badges to collect and trophies for perfect clears

# EASY ON THE EYES (AND HANDS)
• Calm, dark-mode aesthetic with smooth animations
• Play one-handed, in portrait, at your own pace — no timers except the ones YOU opt into
• Small download, works offline

Optional rewarded ads can revive a lost run, and a single one-time purchase removes banner ads forever.

Love arrow puzzles, tap puzzles, or traffic-jam logic games? Clear the gridlock. Feel the flow. Clear the gridlock. Feel the flow.