Slope.io - Endless reaction-based maze runner. Slope is a 3D endless running game with simple controls, breakneck speeds, and super-addictive gameplay. It is developed by Rob Kay and is suitable for players of all ages!

When playing Slope.io, players must follow the vertical line and avoid obstacles as they crash through the 3D course set out in front of them. Playing slope provides hours of fun and will truly test a player's reflexes and reactions.

If you enjoy fast-paced platform games, you will love this title.

Slope.io game controls and gameplay

To play the Slope.io game, players simply have to use the keyboard arrow keys. The real-time gameplay is responsive and players only have to make small adjustments to their movements. If players hold the keyboard keys for longer, the movements of the ball become pronounced.

There is no other gameplay mechanics involved - simply control the ball and guide it through the maze. Remember that the course is endless - there are no levels or stages to complete. Simply try to maintain the ball for as long as possible to gain a high score.

Slope.io development

This game was created by well-known games developer who has worked on other popular titles. Furthermore, the game is created using the popular Unity framework which is used to produce millions of browser and console games.

Other exciting games in the avoid genre

The Slope.io game is part of the “avoid” genre. Examples of other popular games within this genre include:
  • Avoid tag category - Link
  • Crazy Roll 3D - Link
  • Skate Hooligans - Link


  • Eye-catching neon graphics and style.
  • Rapidly changing courses that become harder and more unpredictable.
  • Tons of crazy obstacles in the form of roadblocks, treacherous pits and killer walls.
  • See who's the best – and try to beat them – on the leaderboard.
  • Full-screen mode available.


Slope was built using Unity 3D and is available through a web browser (using WebGL). It is also playable on mobile via Android app.


This game was developed by Rob Kay, an SF-based game developer who was the lead designer of Guitar Hero and Rock Band!


How to Play Slope (Instructions and Controls)

Steer with the arrow keys, avoid obstacles, and adjust for gravity. Don't bump into the red walls! Use your keyboard to do so:
  • LEFT ARROW = Move Left
  • RIGHT ARROW = Move Right
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