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:

"Neon cyberpunk city obby with glowing platforms"

"Medieval castle obby with stone towers and lava moats"

"Sky island obby floating in the clouds"

"Halloween haunted house obby with kill bricks and dark corridors"

"Candy land obby with bouncy mushrooms and colorful platforms"

"Ice mountain obby with narrow walkways and steep climbs"

"Space station obby with gap jumps between asteroids"

"Ancient temple obby with staircase puzzles and lava floors"

Tip:Add difficulty words to your prompt to control how hard the obby is. "Easy beginner obby" generates wide platforms and forgiving gaps. "Extreme hard-mode obby" generates thin paths and challenging jumps.

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, describe your game, and download the .rbxlx file with no payment required. Pro plans unlock more credits and priority queue for faster builds.

Does the obby have working scripts?

Yes. Generated obbies include Luau scripts for all interactive obstacles — kill bricks, lava zones, checkpoint saves, and gap jumps all work out of the box in Studio.

Can I edit the obby after generating it?

Absolutely. The .rbxlx file opens in Roblox Studio where you can add, remove, or modify anything. The AI gives you a working starting point — the final polish is yours to do. 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. You can specify more stages in your prompt: "a 10-stage space obby" will generate a longer course.

Can I publish the obby on Roblox?

Yes. Open the file in Studio, hit File → Publish to Roblox, give it a name and icon, and set it to Public. 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.

"Medieval castle obby with stone towers, lava moat, and dungeon corridors"

"Dark knight castle obby with iron spike platforms and torch-lit bridges"

"Ancient ruins castle obby with crumbling walls and overgrown platforms"

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.

"Neon space station obby with glowing cyan platforms and laser barriers"

"Asteroid field obby floating in deep space with rocky platforms"

"Sci-fi space colony obby with metal corridors and zero-gravity sections"

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.

"Candy land obby with bouncy gummy bear platforms and candy cane poles"

"Chocolate factory obby with cocoa rivers and wafer platforms"

"Rainbow candy obby with vibrant layered platforms and lollipop towers"

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.

"Lava mountain obby with narrow rock bridges and glowing magma below"

"Underground volcano obby with crumbling stone platforms and lava rivers"

"Ancient lava temple obby with stone ruins and glowing floor cracks"

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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