Hollowline Rolling Ball Runner

Hollowline is a one-finger rolling ball runner: hold your finger down, slide left and right, and keep a glowing ball on a track that never stops moving. That is the whole control, and it is all you need: every bend, squeeze and hazard is played with one finger, across 120 levels and an endless Flow mode.

DODGE WHAT THE TRACK THROWS AT YOU
Walls grow teeth, gates slide across your lane, pulse walls breathe in and out, and islands rise in the middle of the road so you have to pick a side. Graze them without touching and your near misses stack up into a Lumen Rush.

CREATURES AND HOLES IN THE ROAD
After the tutorial, every level holds at least one of the two: a creature lying along the road, its body winding from side to side, or a hole in the floor with only a narrow strip left to cross. Each world has a creature of its own, and the later worlds send them more often. See the gap early, slide, and your reflexes do the rest.

120 LEVELS, SIX WORLDS, RISING SPEED
Journey takes you through Abyss Reef, Void Bloom, Crystal Vein, Lumen Lab, Solar Circuit and Candy Reactor, and each world runs faster than the last. Every level has three medals to earn: finish it, collect enough gold sparks, and clear it without reviving.

MORE WAYS TO PLAY
• Flow, an endless run that keeps going until you slip.
• Daily, one track that is the same for every player, new each day.

GOLD SPARKS, 18 CORES
Collect sparks as you ride. Spend them on 18 cores that change the colour of your ball and nothing else, or use them to open the next level or a whole new world before you have finished the one you are in.

HOW ADS WORK HERE
Hollowline is free and has ads, but no ad ever appears in the middle of a run. When you crash, the big button on the card plays a short video and puts you back on the track right where you hit. If the video cannot load, you get that revive anyway, once per run. The small retry button is always there instead: a level's first retry is free and later ones play a video. Now and then a short ad plays between runs, and a video can double the sparks a run earned.

ANYWHERE, ANY TIME
Hollowline plays offline, with light haptics on every hit and near miss, and it speaks 12 languages.

Hollowline is for anyone who likes ball runner games, one-finger games, dodge games and reflex games: a rolling ball challenge you can play offline, with an endless runner mode called Flow.

Privacy policy: https://ibrahimbilgic.github.io/hollowline-privacy/

Recent changes:
Crashed? The big button now plays a short video and puts you back exactly where you hit. If no video loads, that revive is on us once per run.