A downloadable game for Windows

Horizontunnel is an action shooter taking place in procedurally generated tunnel.


  • 6 procedurally generated levels split into 3 areas
  • over 3 colors
  • tight controls
  • an ending
  • no checkpoints, death means you start all over


  • Version 1.1 Small fix - you can no longer shoot through block when standing directly next to it.
  • Version 1.2 Added screenshake when shooting and getting hit.


Horizontunnel 1.2.exe (3 MB)


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omg with a little work and polish, and controller support this game could be amazing ! downwell is one of my favorite games of all time! don't stop with this !


very cool!

A lot of fun! Good job

Very good tribute to Downwell and still you have some tricks.