It's player slang, not a dictionary word. It shortens obstacle course, and players use it for the game and for each course: one obby, two obbies.

Do you need Roblox to play an obby?

No. The word grew up on Roblox, but obbies are a format, not a product. Speed Obby runs in an ordinary web browser with no account or download.

What makes an obby hard?

Precise jumps, moving parts with tight timing, long stretches between checkpoints and obstacles that punish a single mistake. Good obbies keep checkpoints close, so a fall costs seconds rather than minutes.

What Is an Obby? Obby Games, Types and Tips Explained

What obby means

An obby is an obstacle course you play as a game. You start at a checkpoint, run and jump along a route of platforms, and try to reach the next checkpoint without falling. Fall off, or touch something dangerous, and you go back to the last checkpoint you reached. Clear enough checkpoints and you finish the course.

The word comes from Roblox, where obstacle courses have been one of the most played kinds of game for years. Players shortened obstacle course to obby, and the plural became obbies. Today people use the word for the format wherever it appears, including games that run in a browser.

How an obby works

Every obby is built from a few simple parts:

Stages and checkpoints. The course is split into stages. Each one ends at a checkpoint, often a coloured pad, that saves your place.
Hazards. Lava, spikes, gaps and moving blocks send you back to your checkpoint. Most obbies mark danger with one colour, usually red or orange.
Movement skills. Running, jumping and steering in the air are the whole toolkit. Harder obbies add climbing, swinging, wall jumps and bouncing.
A finish. Some obbies end at a final stage, while others go on through themed worlds or keep score with a stage counter.

Because the rules are so simple, obbies are easy to start and hard to master. That mix is why they suit quick sessions with friends.

The main kinds of obby

Classic stage obby: a numbered run of stages, each a little harder, often with a theme per section.
Tower obby: a vertical climb, floor by floor, where a fall can drop you a long way.
Speed obby: a +1 speed game where every step makes you faster, and walls open only once your speed is high enough. You keep improving even when a jump goes wrong, because the speed you earned stays.
Escape obby: a chase or escape story wrapped around the course, from a building, a monster or a giant object.
Difficulty chart obby: stages ordered by a published difficulty scale, made for players who want a real test.
Two-player and team obbies: courses where partners hold doors, carry each other or share a run.

Obstacles you will meet

Kill parts and lava: touching them resets you to the checkpoint.
Disappearing and falling platforms: they vanish after you land, so keep moving.
Conveyors: belts that carry you, sometimes sideways toward the edge.
Spinners and sweepers: rotating bars and blocks that knock you off if you're caught.
Moving platforms: blocks that slide, lift or swing on a timer.
Ladders and trusses: climbing sections between levels.
Launch pads and jump pads: springs that throw you across a gap or up to a ledge.

Tips for any obby

Watch before you jump. Moving obstacles repeat, so one full cycle shows you the safe moment.
Jump from the edge. Most misses come from jumping early, not late.
Steer in the air. Small corrections mid-jump save more runs than a perfect take-off.
Turn the camera first. Line up the next platform before you move, not in the middle of a jump.
Use your checkpoints. A fall usually costs only a few seconds; treat it as a free look at the next part.

Play an obby in your browser

Speed Obby is a free speed obby built on a giant keyboard: every step adds Speed, keys drop, launch and spin under you, and glass gates open as you get faster. It runs in a browser on computers, Chromebooks, tablets and phones, with other runners sharing the course. Press Play on the home page to try it.

What is an obby?