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Your Obby Size is a parkour-platformer where you don't just jump over obstacles—you shrink and grow to survive them. Think of it as a 3D obstacle course on steroids, where mastering the QE keys (size control) is just as critical as nailing that triple jump. It's pure reflex chaos with a twist: the world bends to your size, not the other way around.

Key Features

Dynamic Size Shifting: Use Q and E to shrink or grow mid-air, squeezing through tight gaps or reaching high platforms.
Blocky 3D Aesthetic: Clean, sharp geometry with vibrant textures—think classic Roblox vibes optimized for instant loading and smooth 60 FPS.
Trophy-Gated Secrets: Collect trophies scattered across levels to unlock hidden shortcuts, exclusive character skins, and brand-new locations.
Monster Guardians: Certain areas are patrolled by enemies—timing your run is key to avoiding encounters.
Endless Challenge Scaling: Levels range from beginner-friendly jumps to expert-tier parkour requiring frame-perfect inputs.

How to Play Your Obby Size

Easy to pick up, brutal to master—the first 10 jumps teach you the basics, but by level 5, you'll be juggling size swaps, camera rotations, and split-second dodges simultaneously.

Controls

Responsive on both platforms. Desktop players get precision; mobile players get intuitive touch UI.

Desktop: WASD to move, Spacebar to jump, Q/E to change size, Mouse Wheel to zoom, Hold Right-Click + Drag to rotate camera, Tab for pause, Shift to toggle cursor.
Mobile: Use on-screen buttons and swipe gestures—same mechanics, optimized for touchscreen.

Size Shifting Is Survival

The moment you spawn, you'll notice glowing white laser beams and floating coins. Here's the trick: tap Q to shrink under the lasers, then hit E mid-jump to grow and grab that coin on a high platform. Your size resets your hitbox instantly—use it to phase through tight corridors or tower over enemies.

Dodging Lava and Monster Zones

Red glowing surfaces? That's lava. Touch it, you respawn. But the real threat is monster patrols in trophy-locked areas. They don't chase—they block. You'll need to study their patterns, then sprint + jump + shrink in one fluid motion to slip past. Miss the timing? Back to the checkpoint.

Unlocking the Secret Paths

Every zone hides shortcuts. Collect enough trophies (usually 5-10 per area) to unlock branching routes that skip entire sections. Pro players hunt these down first—why grind 50 jumps when you can wallrun past them? Skins are the endgame reward: unlock unique character models by clearing trophy milestones.

Who is Your Obby Size for?

If you grew up speedrunning Roblox obbies or lose hours to platformers like Celeste, this is your jam. Perfect for 10-minute bursts during breaks—but don't be surprised when "one more try" turns into an hour-long grind to conquer that extreme-tier level.

The Gameplay Vibe

It's high-speed trial and error. You'll die. A lot. But each failure teaches you the rhythm: shrink here, grow there, camera flick at 90 degrees. The blocky visuals aren't a compromise—they're the reason the game runs buttery smooth even during chaotic 20-jump sequences. No texture pop-in. No lag. Just you versus the course.

Technical Check: Saves & Performance

1. Saves: Progress auto-saves via browser cache. Trophy counts and skin unlocks persist across sessions.
2. Performance: Built in Unity with lightweight 3D assets—expect stable 60 FPS even on mid-range phones. No downloads, no installs.

Quick Verdict

If parkour games are chess, Your Obby Size is speed chess with shrink rays—fast, unforgiving, and addictive once you nail the size-swap flow.

The Hook: Size control transforms basic jumping into a puzzle—every gap demands strategy.
Visual Clarity: Pixel-perfect hitboxes and distraction-free textures mean you always know why you died.
Pro Tip: Use the Mouse Wheel zoom during tricky sections—zooming out reveals hidden platform chains.
The Grind Payoff: Trophy hunting isn't filler—it's your ticket to skipping the hardest parts and flexing rare skins.

Release Date & Developer

Your Obby Size was developed by KreizLand. Released in June 2025.

FAQ

Where can I play Your Obby Size online?

You can play Your Obby Size for free on Playgama. It runs in your browser without downloads.

How do I unlock secret paths in Your Obby Size?

Collect trophies scattered throughout levels. Once you hit the required count for a zone (usually 5-10), hidden shortcuts and new locations unlock automatically.

What do the Q and E keys do in Your Obby Size?

Q shrinks your character, letting you slip under lasers or through tight gaps. E makes you grow, which helps you reach high platforms or tower over obstacles. Mastering size swaps mid-jump is key to beating harder levels.

How do I avoid monsters in Your Obby Size?

Monsters guard trophy-locked areas and follow fixed patrol patterns. Watch their movements, then time your sprint + jump + shrink combo to slip past. They don't chase, but they will block your path if you hesitate.

Can I play Your Obby Size on mobile?

Yes. The mobile version uses on-screen buttons for movement, jumping, and size shifting. Camera rotation works via touch swipes. Performance is optimized for smooth 60 FPS even on mid-range devices.