How to make a locked door (Difficulty: 🟩)

In this tutorial, you will learn how to use checks and props to make a cool looking door!

What you will need:


  • 1x Checker
  • 1x Zone
  • 1x Prop of your choice

Place down a checker. Inside of it, have it run one check. That check should check if the player has a key, so make it check for an item amount greater than zero.

Next, run a wire from the zone to the checker for when the player enters the zone, the checker will check if the player has a key. Run a wire from the checker to the barrier. If the check succeeds, then hide the prop.

Finally, run a wire from the zone to the barrier. If the player leaves the zone, show the barrier.

That’s all you have to do! Hopefully you now know how to use checkers, and most of all, thanks for reading!


Nice guide! This also doubles as a neat checker tutorial!

I honestly might make a guide on checkers

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Do it. There has never been a better time to.

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Nice guide, @JoeTheChicken! You’re making a lot of great guides, keep up the good work!

I really like this, cuz I tried it on my map, and it’s super useful! this is a good guide

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Great guide! To add on, you could have one of those keycard checker things from One Way Out and make it go green when the door opens.