Baldi 3D

Baldi 3D drops you into a bizarre, boxy campus where every corner holds a new challenge. The goal is straightforward: gather notebooks, tackle the arithmetic inside, and keep moving. But this isn't your average classroom grind. Get a problem wrong, or dawdle too long, and the halls fill with the unsettling sound of a ruler slapping—a warning that Baldi is closing in. The game turns simple sums into a heart-pounding test of nerve. With a first-person view and a maze-like school layout, you'll need to think fast and plan your escapes. It's a mix of memory, quick calculation, and pure survival, wrapped in a retro-style visual that somehow makes it all the more unnerving. Each playthrough offers a fresh scramble, keeping both your math skills and your reflexes on edge.

WaffleMath

Baldi 3D

Common Core State Standards

Every game supports specific Common Core standards. Browse the full standards library.

MP3Argue with math MP1Make sense of problems MP7Use structure MP4Model with mathematics MP2Reason abstractly A.REI.B.4Quadratic equations 7.SP.C.8Compound events S.MD.A.3Probability distributions G.GPE.B.6Partition segments

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7th Grade · 8th Grade · High School

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What is Baldi 3D

Baldi 3D is a first-person arcade chaser that blends basic arithmetic with a tense hide-and-seek premise. Swipe notebooks, solve problems, and try not to become the teacher's next detention.

How to Play

Use the WASD or arrow keys to roam the school, and the mouse to glance around. Pick up notebooks and answer the math questions; correct answers buy you time, but mistakes alert Baldi to your location.

Tips for Playing

Keep your eyes on the map layout—memorize the notebook locations early.
Answer math questions quickly; hesitation gives Baldi more time to find you.
Use sound clues: a faint ruler slap means he's closing in, so change direction.
Leave a wrong answer for the last notebook to minimize chase time.
Don't hoard answers—solve each as you grab it to avoid panic later.

Frequently Asked Questions

What happens if I answer a math problem incorrectly?

Baldi hears the error and starts moving directly towards your position. You'll need to run and find a different route to lose him.

Can I hide from Baldi?

There's no dedicated hiding spot, but breaking line of sight by turning corners and staying quiet can slow him down temporarily.

Are the math problems always the same difficulty?

The problems stay simple (like addition and multiplication), but the pressure ramps up as more notebooks are collected, making each answer feel harder.

Is there a way to distract Baldi?

You can't distract him, but you can lure him away by making noise in another part of the school—like intentionally triggering a creaky floor.

What happens when I collect all notebooks?

Gathering every notebook triggers the end sequence, where you need to reach the exit door before Baldi catches you in a final chase.

Does the game get harder on repeated plays?

Yes, the school layout shifts slightly each run, and Baldi's speed can increase depending on how many errors you've made.