How to make a good Roblox obby (that players finish)
Design an obby players actually complete: difficulty curves, checkpoints that save, fair kill parts, mobile-friendly jumps, stage skips and how obbies earn.
By BloxIQ Research · · 9 min read
Obbies are the most common first game on Roblox, which is exactly why most of them get no players. Building one is easy. Building one that players finish, come back to and tell friends about takes more thought. This guide covers what separates the obbies that keep players from the thousands that don't.
Decide what makes yours different
"An obby" isn't a pitch. The obbies that grow usually have one clear hook you can see in a thumbnail:
- A theme: escape the school, climb the tower of a giant, run through a cartoon kitchen.
- A twist on movement: you can only move in 2D, the floor flips, you're a ball, you carry an item that changes how you jump.
- A social angle: two-player co-op stages, races against other players, or a tower that everyone climbs together.
- A difficulty promise: "easiest obby" and "hardest obby" are both genres with their own audiences.
Look at the obby genre rankings and note which hooks are already crowded. Then pick one you can describe in a sentence.
Build the difficulty curve on purpose
The first stages decide whether a new player stays. A good curve:
- Stages 1–5 teach, not test. Basic jumps, one new idea per stage, nearly impossible to fail.
- Introduce each mechanic safely before it's dangerous. Show a moving platform over solid ground before you put one over a lava pit.
- Alternate hard and easy. After a tough stage, give a breather so players feel progress.
- Raise difficulty with combinations, not cruelty. Combining two mechanics the player already knows feels fair. A pixel-perfect jump with no warning feels like a bug.
Watch new players try it without helping them. Any stage where most people fail five times in a row is a stage where many will quit.
Checkpoints that work (and save)
Checkpoints are the backbone of an obby:
- Use a SpawnLocation per stage, and set the player's respawn point when they touch it.
- Show the stage number in a leaderstats value so players and friends can see progress.
- Save the stage with DataStoreService when it changes (throttled, so you don't save on every touch) and when the player leaves. Losing 40 stages of progress after a disconnect is the fastest way to lose a player for good.
- Don't let players skip ahead by touching a later checkpoint early. Only accept the next stage number, validated on the server.
Kill parts that feel fair
Most obby deaths come from kill parts (lava, spikes, lasers). Keep them readable:
- One consistent colour or material for danger, so players learn it instantly. Bright red neon is a cliché because it works.
- Handle the kill on the server with a Touched event that sets the touching character's Humanoid health to zero.
- No invisible or surprise kill parts. Players forgive hard. They don't forgive unfair.
- Fast respawns. Every second spent waiting to retry is a second to decide to leave.
Make it work on a phone
A large share of Roblox players are on mobile, and obbies are where mobile players struggle most.
- Test every jump on a phone. Jumps that are easy with a keyboard can be miserable with a touch thumbstick.
- Avoid tiny platforms at awkward camera angles. Mobile players can't fine-tune the camera mid-jump as easily.
- Keep UI out of the thumb zones, especially near the jump button.
How obbies earn
Obbies earn mostly through small, optional purchases. Common ones:
- Skip stage developer products, priced low, for players stuck on a hard stage.
- Cosmetic trails, speed coils or gravity coils as game passes (be careful: a gravity coil can trivialise your design).
- VIP for a chat tag, a lounge or bonus cosmetics.
The skip stage is the classic obby product because it's bought at the exact moment a player is frustrated. That's also its risk: if your stages are hard just to sell skips, players notice and rate the game down. Make the free path fair and sell convenience. Game passes vs developer products explains which to use for each.
Give players a reason to come back
Finishing is the end of most obbies. To keep players beyond that:
- Add stages in regular updates and announce the new stage count.
- Track completion time and show a leaderboard for speedrunners.
- Unlock something on completion, such as a badge, a trail or a hard mode.
- Use badges for milestone stages. They show up on players' profiles, which is free advertising.
Package the game page
Your icon and thumbnail should show the hook, not just "OBBY" in big letters. If your obby is "escape the giant's kitchen", show the kitchen and the player tiny on the counter. Use the title checker to keep the name short, and read making icons and thumbnails that earn the click.
Checklist
- One-sentence hook you can show in a thumbnail
- First five stages teach, nearly impossible to fail
- New mechanics introduced safely, then combined
- Checkpoints validated on the server and saved reliably
- Danger is consistent and visible; fast respawns
- Every jump tested on a phone
- Skip stage priced low; free path fair
- Reasons to return: new stages, leaderboards, badges
BloxIQ's genre research shows how concentrated the obby market is and whether new obbies are breaking through this month, and outlier scores highlight obbies growing well above their usual level, which are often the best ones to study.