
Free
In-App Purchases
Rating summary
About
Welcome to the spookiest attraction in town – and you're the boss!
Boo There is tower defense with goosebumps: instead of towers, you build your very own haunted house. Place jumpscares, monsters, chainsaw clowns and zombie graves along the path and make sure every guest leaves screaming. Anyone who wasn't scared enough costs you a life!
THINK, DON'T JUST SPAM Every guest has two bars: fear and patience. Fill up the fear and you win. Let them get bored and they run for the exit. Slow guests down with a giant spider, then scare them with a monster jumping out of the closet, keep them entertained with a haunted piano – and use walls to steer them exactly where you want them.
SCARES THAT WORK TOGETHER Almost 40 different scares, each with its own role: Shockers, Slowers, Lingering Dread, Entertainers, Pushers and Lures. Colours and symbols show at a glance what each one does. Put the right scares side by side and discover one of 12 combos – like "Resurrection" with a bone hand next to a zombie grave.
EVERY GUEST IS DIFFERENT Nervous tourists, impatient runners, hardened horror fans, families where the kids drag their parents along, whole school classes – and the influencer who'll leave a one-star review if they get bored. 14 types of guests, each scared in their own way.
FULL OF SURPRISES • 34 levels in a basement, hospital, circus, graveyard and cornfield • 11 boss fights with special rules • 3 tricky puzzle levels with exactly one perfect solution • Thunderstorms, full moons, blackouts and heatwaves change every round • Spook abilities: "Boo!", Spook Wind, Lights Out and Poltergeist • Bonus goals and up to 3 stars per level • Workshop: buy new scares and upgrade your favourites • Endless Mode: how many waves can you survive?
KASIMIR'S GOT YOUR BACK Kasimir, the cheeky ghost in a top hat, explains everything step by step – no manual needed.
FAIR PRICING The first chapter is free. If you like it, one single purchase unlocks everything: all levels, puzzles, bosses and Endless Mode. No subscription, no ads, no energy bars.
Ready? Turn off the lights – here come the first guests!
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What's New in Boo there!
1.1
October 27, 2026
Small Bug Fixes
1
Subscriptions & In-App Purchases
$2.99
Full Version
All levels, puzzles, bosses and Endless Mode






