Kids Birthday Parties

NEAR MILFORD PA · WARWICK NY · SUSSEX COUNTY NJ

Kids Birthday Party Venue in Sussex, NJ

The easiest kids birthday party you'll ever plan. Dream it. Tell us. We'll make it happen. No two kids are the same, and neither are our parties.

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Celebrate Differently

What's included

  • Private party space
  • Hands-on themed activities
  • Space for food, cake and gifts
  • Stress-free setup

Good to know

  • Up to 10 guests included, birthday child too
  • Up to 24 guests total
  • Parties over 10 guests need an extra host
  • Extra guests are $25 each

Make it yours

Share your child's interests, colors or theme ideas, and we'll bring it to life with custom touches throughout. Don't see your theme? We can usually make it happen.

This or that?

Tap your favorite in each pair and we'll point you to the party that fits.

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Pick your party

Simple, fun and fully customizable. Every price includes up to 10 guests.

Not sure? Take the party quiz
Kids making a themed craft at the party table

Creative Celebration Party

$455
1.5 hours · up to 10 guests included
  • Each child makes one or two crafts based on the theme: dioramas, fairy gardens, glitzy wall décor, tie-dye, painted canvases and more
  • Coordinated themed décor and a dedicated party attendant
  • 1 hour of crafting plus 30 minutes for pizza and cake
Inquire about this party
Kids showing off their painted canvases at the party table

Canvas Painting Party

$455
1.5 hours · up to 10 guests included
  • Kids pick a theme and paint with a guided instructor, no experience needed
  • Sparkles, gems and extras make it one of a kind
  • Every child takes home their own hand-painted keepsake, better than a goodie bag
Inquire about this party
A boy stepping over an obstacle on an obstacle course

Parkour or Karate

$455
2 hours · up to 10 guests included
  • Move, jump and play with certified instructors
  • Skills, obstacle courses, team games and action-packed challenges
  • 1.5 hours of instruction and games plus 30 minutes for pizza and cake
Inquire about this party
Two kids in safari outfits playing in a themed room

Interactive Themed Party

$550
1.5 hours · up to 10 guests included
  • Princess, superhero training, tea parties or a custom adventure brought to life
  • Games, crafts and themed activities with matching décor
  • 1 hour of fun plus 30 minutes for pizza and cake
Inquire about this party
Kids in costume playing together

Interactive Storytelling Games & Challenges

$455
1.5 hours · up to 10 guests included
  • Led by a lively instructor: kids act out stories, with silly improv scenes, team challenges and games
  • Fun for kids and even adults, and fully customized to your group
  • 1 hour of storytelling and games plus 30 minutes for pizza and cake

You won't find a party like this anywhere else in Sussex County or the tri-state area.

Inquire about this party
A kid with glow sticks and a popcorn container on a movie night

Big Screen Birthday

$455
2 hours · up to 10 guests included
  • A projector movie experience with snack stations: candy kabobs, popcorn and drinks
  • Pizza served during the movie, then cake
  • Dedicated party attendant. Add-ons: movie fidget bins, glow sticks, take-home popcorn containers
Inquire about this party
A girl in a tiara crafting at a brunch-style party

BFF BrunchTweens & teens

$550
2 hours · up to 10 guests included
  • Tea party-style brunch with specialty drinks and girly décor
  • Activities of your choice: bracelet making, hairbrush decorating, lip gloss charms and more
  • Dedicated party attendant
Inquire about this party
A child building a robot car with LEGO bricks at a Brick Builder birthday party

Brick Builder PartyNew

From $300
1 to 2 hours · ages 5+ · 10 to 15 kids included
  • Built with real LEGO® bricks
  • Deluxe, 1 hr, $300: building challenges, brick games and free build, plus a gift bag for the birthday child
  • Premium, 1.5 hrs, $420: a model build, games with prizes, a giant brick tub, juice and chips
  • Supreme, 2 hrs, $535: up to 15 kids with two hosts, games with prizes, juice and chips
  • Add-ons: mini figure or race car station, name tag station, goody bags

LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize or endorse this party.

Inquire about this party
Three boys playing a board game together

Game On! PartyComing soon

Ask us
Early availability open
  • Projector video games, tabletop favorites and a lounge-style setup where friends rotate and play
  • Reach out to secure early availability
Ask about it

Party add-ons

Make it extra special.

Slime barSpecial characterMini canvas painting stationCandy kabob barMini patch decoratingSensory tableAnd more

Why parents love our parties

“She designed a custom Taylor Swift–themed party that all of the girls thoroughly enjoyed. The activities included crafts, a dance party with fun props, and BINGO, and everything was well organized.”Cheryl H.
“Altered Course hosted a Princess Tea Party for my 6 year old daughter's birthday and it was perfect! She customized the party to exactly what I wanted, and she was wonderful to work with.”Dana D.
“Chose the Parkour party, Amaury was amazing. He kept 8 high spirited boys busy for 2 hours. The venue was decorated and was spotless!”Jane D.

Before you book

WhenFriday evenings and weekends. Ask about other times.
Deposit$150 secures your date and is applied to your balance.
Guest countFinal count is due 7 days before your party.
Extra time$75 for each extra 30 minutes. 11 to 24 guests add a $65 attendant.

See all party details and policies

Real parties, real smiles

A peek at what happens when kids dive in. Swipe or tap the arrows to see more.

Kids with birthday hats showing off their painted emoji canvases at a party table
A boy in a superhero cape and mask doing a messy art project at a party
A dad and kids painting colorful canvases at an orange party table
Hands crafting a themed project at the party table
Kids in gloves enjoying a hands-on party activity

Let's get this party started

Text us to check your date, or fill out the form below and we'll reach out to plan your party.

Text usFill out the form

Altered Course Venue · 70 East Main St, Sussex, NJ 07461 · (862) 314-0905
Serving families in Sussex County NJ, Orange County NY and Pike County PA

Check your party date

Tell us your date and we'll get right back to you. Rather text? (862) 314-0905

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