The Slime Factory @ Factoria Marketplace
Sensory slime-making studio for kids 3 - 16
At a Glance
Best Ages
3 to 16
Cost
Free to low
Time Needed
30 - 60 minutes
Indoor/Outdoor
Indoor
Weather Fit
All weather
Stroller Access
Yes
Washrooms
Yes
Food
Bring snacks; food allowed only during private events
Parking
Plenty available
Booking
Required
Parent Effort
Low to moderate
A hands-on sensory play experience focused on slime creation, suitable for children ages 3 and up. Offers guided sessions with protective gear and takeaway slimes. Best for families seeking tactile, creative activities; may be messy and require preparation. Staff quality varies - some guests report mixed interactions.
About This Place
The Slime Factory at Factoria Marketplace in Bellevue, Washington, offers a hands-on slime-making experience for children and families. Each session includes guided slime creation, sensory play in a slime pool, protective gear, and take-home materials. The venue is indoor-only, suitable for ages 3 to 16, and ideal for birthday parties, field trips, and sensory-friendly events. Admission requires advance booking and includes a certificate and photo opportunities. No food or drinks are allowed in the main activity area, though snacks can be brought for parties.
Official Website open_in_new- Monday – Friday
- 11:00 – 19:00
- Saturday
- 10:00 – 19:00
- Sunday
- 11:00 – 18:00
Hours were last verified in 2026. Please check the official website for the most up-to-date opening times.
- General Admission
- $30.00
Prices were last verified in 2026. Please check the official website for the most up-to-date rates.
Multilingual support
Staff include multilingual team members for inclusivity
Inclusive design
Sensory-friendly environment with protective gear
Active participation
Custom slime creation with take-home results
Flexible group options
Private events and parties available with advance booking
Good to Know Before You Go
- Age range
- Recommended for children ages 3 to 16; not suitable for infants or very young toddlers due to hands-on activities
- What to bring
- A change of clothes for children - slime-making can be messy; snacks if not provided during private events
- Staff language support
- Spanish-speaking staff member available by request (e.g., Stephanie)
- Booking
- All visits, including birthday parties and school field trips, require advance reservations
- Food policy
- No food or drinks permitted in the main activity area, except during private events where snacks are allowed
- Sensory & accessibility
- Designed for sensory-friendly experiences; staff support available for children with special needs; inclusive and accessible space
- Duration
- Sessions last 30 - 60 minutes, but hands-on activities may extend time depending on engagement
- Special notes
- Children create two custom slimes to take home; commemorative certificates and photo opportunities included
Kid Fit by Age
Too young for the hands-on slime activities; no sensory play appropriate for infants.
Activities may be too advanced for very young toddlers (under 3); some 3-year-olds enjoy it, but coordination and focus vary. Risk of mess may require extra supervision.
Ideal age group; hands-on slime-making is engaging, sensory-rich, and developmentally appropriate; staff support ensures a positive experience.
Perfect fit for elementary-aged children; fun, creative, and educational with a clear hands-on outcome they take home. Well-suited for school groups and birthday parties.
Enjoyable but less novel; older kids may find the experience more playful than challenging. Still engaging due to social interaction and take-home slime.
Can be fun for social visits or with younger siblings, but may not be seen as age-appropriate or exciting for independent teens seeking more complex activities.
Insider Tips
Ask for Stephanie for Spanish-speaking support
Arrive 10 minutes early to settle in
Slime-making can take longer than advertised
Check if private events allow outside snacks
- •Children must wear goggles and lab coats during slime activities
- •Slime is non-toxic and safe if ingested accidentally
- •Staff trained to manage minor spills and sensory overstimulation
- •No food or drinks allowed in main area except during private events
- •Step-free access via front entrance
- •Sensory-friendly environment with adjustable lighting
- •Baby change available in restroom areas
- •Staff trained to support children with special needs
schedule Best Time to Visit
Visit mid-week mornings for the quietest experience and shortest wait times
shopping_bag What to Bring
- check_boxChange of clothes for kids
- check_boxSnacks if needed for young children
- check_boxSmall bag to carry take-home slime
- check_boxCamera or phone for photos
- check_boxPrinted reservation confirmation
Frequently Asked Questions
What ages is The Slime Factory suitable for? expand_more
Children ages 3 to 16 are welcome; the experience is designed to be safe and engaging for this age range.
Is there parking available for visitors? expand_more
Yes, parking is available at Factoria Square Mall, with standard on-site options near the entrance.
Can I bring snacks or drinks to The Slime Factory? expand_more
No food or drinks are permitted in the main activity area, except during private events where snacks are allowed. Bring your own snacks if needed.
Do I need to book in advance to visit? expand_more
All visits require advance booking, including for general admission. Reservations are necessary for birthday parties, field trips, and private events.
What should we bring for our kids? expand_more
It's recommended to bring a change of clothes for children, as slime-making can be messy, especially for younger participants.
Is The Slime Factory accessible for children with special needs? expand_more
The space is accessible and inclusive, with staff trained to support children with special needs; sensory-friendly sessions are available upon request.
Location
Address
3929 Factoria Square Mall SE Space D4, Bellevue, WA 98006, United States
Phone
+1 425-590-9129
Make it a half-day
View All Bellevue
Last checked: 2026