FISSION // NEON TUNNEL

Split.Merge.Survive.

A one-button neon tunnel runner built around timing, focus, and the clean satisfaction of getting one more run exactly right.

Hold to split. Release to merge.

A blue and magenta FISSION signal racing through a neon tunnel
One button. Two signals.Master the merge.
ControlOne-button focus
CampaignSix authored routes
ReplayOne more run

Inside the signal

See what waits beyond the next gate.

Explore the routes, skins, daily challenges, records, and progress that make every run feel like your own.

FISSION home screen with split and merge gameplay
Split. Merge. Survive.Master six neon routes.
FISSION skins screen with orb colors and tunnel worlds
Unlock beautiful skins.Make the signal yours.
FISSION daily challenge screen with a weekly goal
Take on daily challenges.A fresh route every day.
FISSION leaderboard screen showing the top score
Chase the top score.Leave your mark on the relay.
FISSION progress screen showing stats and achievements
Track your progress.Every run tells a story.

The signal language

Simple to learn. Hard to perfect.

FISSION keeps the controls quiet so the tunnel can speak. Read the gate, commit to the timing, and let the run build its own rhythm.

01

Split

Hold to separate the signal into its cyan and magenta paths.

02

Merge

Release at the right moment and bring both sides back into alignment.

03

Survive

Clear the gate, protect the streak, and chase a cleaner distance.

BUILT FOR ONE MORE RUN

Find your rhythm inside the tunnel.

Move between endless runs and authored routes, then return to the details that make a good attempt feel unmistakably yours.

  • Classic, Rush, and Zen modes for different kinds of focus.
  • Daily challenges, unlockable skins, and local Ghost Runs.
  • Rewarded revives when you want to keep the signal alive.
AUTHORED RELAY // 01Wake the first relay. Then keep going.
DAWN VECTOR // READY

Tune in. Find the line. Go again.

Everything you need to get oriented is here. When the signal breaks, player support is one click away.

Open player support