Roblox Obby Maker — Build Obstacle Courses with AI
Type your obby idea, pick a visual style, and get a fully playable Roblox obstacle course in under 60 seconds. No scripting. No Studio experience needed.
Obbies are the most popular game type on Roblox — and for good reason. They're easy to understand, fun to play with friends, and endlessly replayable. They're also one of the best game types to make as a beginner because the core mechanic is simple: don't fall off.
PromptBlox's AI obby maker generates complete obstacle courses from a text description. You describe the theme and vibe, the AI builds a multi-stage course with real obstacles, spawns, checkpoints, and gameplay scripts — all in a .rbxlx file you can open directly in Roblox Studio.
How to Make a Roblox Obby with AI
Describe your obby theme
Go to PromptBlox and type your obby concept. The more specific you are, the better the result. "A neon space obby with floating asteroids and laser beams" will produce a very different game from "a lava-filled underground mine obby."
Pick a visual concept
The AI generates a concept image — a visual preview of your theme. This drives the colors, structures, and vibe of the full build.
Watch it generate (about 60 seconds)
The AI builds a full multi-stage obstacle course: platforms, obstacles, spawn points, a finish line, and all the Luau scripts that make them interactive.
Download and play
Click Download to get your .rbxlx. Open it in Roblox Studio, hit F5, and race through your obby. Share the PromptBlox link with friends to show them the 3D preview before they download.
Obstacle Types Your Obby Can Include
PromptBlox generates obbies using 20+ obstacle types. Mention specific obstacles in your prompt and the AI will include them. See the full obstacle catalogue →
Gap jumps
Platforms with varying gaps — precision jumping is the core mechanic.
Kill bricks
Touch-to-die blocks scattered throughout the course.
Lava pits
Instant-kill zones below or between platforms.
Bouncy mushrooms
Spring platforms that launch you to the next level.
Narrow walkways
Tight paths that punish any misstep.
Wall jumps
Vertical sections where you bounce between two walls.
Staircase climbs
Rising platform sequences that test rhythm and timing.
Checkpoints
Save points throughout the course so you don't restart from the beginning.
Themed decorations
Generate props separately as mods — candy canes, lava rocks, crystals — and drop them into your obby in Studio.
Custom props
Use PromptBlox to generate 3D items (torches, signs, statues) as individual mods, then place them in your obby.
Obby Prompt Ideas to Try
Not sure what to type? Here are some obby prompts that generate great results:
Tips for a Great Obby
Use checkpoints
Generated obbies include checkpoint spawns. Make sure they feel fair — a checkpoint after every 5-8 obstacles is a good rhythm.
Theme your obby consistently
The best obbies have a visual identity. Describe a specific setting (underwater, space, candy land) and the AI will match colors, materials, and props to it.
Start easier, end harder
Players expect difficulty to ramp up. The AI generates stages with increasing challenge by default, but you can say 'starts easy, brutal last section' for a more dramatic curve.
Add a title board at the start
After downloading, open in Studio and add a signpost at the spawn with your game name. It makes the game feel more polished immediately.
Playtest with friends before publishing
What feels fair to you might feel impossible to someone else. Get 2-3 friends to try it and watch where they get stuck.
Frequently Asked Questions
Is the roblox obby maker free?
Yes — your first obby is completely free. Sign up with no credit card, describe your obby theme in the chat, and download the finished .rbxlx file with no payment required. New accounts get 60 credits on signup, plus 100 bonus credits for joining the PromptBlox Discord — enough for multiple obby builds. If you need more, Pro plans start at $14.99/month with 800 credits and priority queue for faster generation times.
Does the obby have working scripts?
Yes. Every generated obby includes fully functional Luau scripts for all interactive obstacles. Kill bricks trigger player death on contact. Lava zones work as instant-kill areas. Checkpoint spawns save your progress so you respawn at the last checkpoint instead of the start. Gap jumps, bouncy mushrooms, wall jumps, and staircase climbs all have the correct physics and collision detection. You can open the .rbxlx in Studio, press F5 to playtest, and every mechanic works immediately without writing a single line of code.
Can I edit the obby after generating it?
Absolutely. The .rbxlx file opens directly in Roblox Studio where you have full control over every part. You can move platforms, resize obstacles, change colors and materials, add new sections, delete ones you don't like, or adjust the difficulty by changing gap distances. The AI gives you a complete, playable starting point with all the scripting done — the creative polish and fine-tuning is yours to do. Many creators use PromptBlox to generate the base course in 60 seconds, then spend another 30-60 minutes customizing it in Studio before publishing. Check out our Studio customization guide for tips.
How many stages does the generated obby have?
Most generated obbies have 3-6 stages with increasing difficulty, where each stage introduces new obstacle types and tighter spacing. You can control the length by specifying it in your prompt — typing "a 10-stage space obby" will generate a longer course with more variety. Each stage has its own checkpoint spawn point so players don't lose too much progress when they fall. The AI also ramps difficulty automatically: early stages have wider platforms and shorter gaps, while later stages use narrow walkways, tighter jumps, and more kill bricks.
Can I publish the obby on Roblox?
Yes. Open the .rbxlx file in Roblox Studio, then go to File → Publish to Roblox. Give your obby a name, upload a thumbnail icon, write a short description, and set the access to Public. The whole publishing process takes about 2-3 minutes. Once published, your obby gets its own Roblox game page with a link you can share with friends. You own the game completely — you can monetize it with game passes, update it anytime, and track player counts on the Roblox Creator Dashboard. See our publishing guide for step-by-step instructions.
Obby Themes
The best obbies have a strong visual identity. Here are the most popular themes and prompt ideas for each:
Castle Obby
Stone towers, drawbridge gaps, lava moats, dungeon corridors. The castle setting is a Roblox classic — dramatic, vertical, with a strong sense of place. Use elevation, mix indoor and outdoor sections, and add a boss room at the top.
Tip: Generate matching decoration mods — stone gargoyles, wall torches, a castle gate — and drop them in Studio for extra atmosphere.
Space Obby
Floating asteroids, glowing neon platforms, space station corridors. Space obbies benefit from a dark background that makes glowing platforms pop. Mix tight corridors with open asteroid sections for variety.
Tip: Request a "dark background with glowing platforms" — the contrast makes gap jumps feel more dramatic.
Candy Obby
Gummy bear platforms, candy cane towers, chocolate rivers, lollipop forests. Bright, colorful, and accessible — candy obbies are great for younger players. Request vivid, saturated colors and bouncy platforms.
Tip: Theme each section with a different candy — gummy zone, chocolate zone, lollipop zone — for a candy factory feel.
Lava Obby
Glowing lava pits, narrow rock bridges, volcano chambers. Lava obbies have built-in tension — players know the floor is death. Generated lava zones are real kill zones with Luau scripts; players who touch lava die and respawn at the last checkpoint.
Tip: Use narrow walkways over lava for maximum tension — the scariest part is the path, not the jump.
What would you build?
Tell us what Roblox game type or feature you wish PromptBlox could make. We read every suggestion.
Make your obby for free — takes 60 seconds
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