Sloomoo Institute Houston: A Visitor's Guide to the Marq*E Slime Museum

Sloomoo Institute opened its Houston outpost at the Marq*E Entertainment Center in spring 2024, and the slime-museum-meets-sensory-playground has stayed busy ever since. The 11,000-square-foot space sits at 7620 Katy Freeway, just west of the 610 Loop, and pulls a mix of birthday-party crowds, TikTok-aged tweens, and parents who decided one rainy Saturday they could absolutely handle a kid elbow-deep in glitter slime.

Tickets start around $25.99 for general admission with timed entry, and the full experience runs about 60 to 90 minutes — long enough to design your own slime at the DIY Bar, walk through the eight or nine themed installations, and (the moment most kids brag about later) stand under the slime fall in a clear plastic poncho while warm goo pours over your head.

Whether the price is worth it depends mostly on whether your kid is currently slime-pilled. If they are, it's the best 90 minutes of money you'll spend this quarter. If not, the gift shop will still get you.

Where Sloomoo Houston actually sits

The location matters here. People keep calling this the CityCentre Sloomoo, but it's actually at the Marq*E — the older entertainment complex one exit west on Katy Freeway, near the AMC theatre and the Edwards Marq*E. CityCentre is across the highway. The two are easy to confuse on Google Maps. Plug 7620 Katy Fwy Ste 360 into your GPS and you'll land in the right parking lot.

Marq*E parking is free and almost always available, which counts for a lot when you're wrangling a 7-year-old already vibrating about the slime fall. The center sits between Memorial and the Energy Corridor, so it's an easy drop-in from anywhere west of downtown.

Hours, tickets, and what to expect

Sloomoo Houston operates on timed-entry tickets, and the schedule shifts seasonally. As of this writing, the institute runs Wednesday through Friday from noon to 7 p.m., Saturday from 9 a.m. to 8 p.m., and Sunday from 10 a.m. to 6 p.m. They close Monday and Tuesday. The schedule expands during school breaks — winter break, spring break, and most of summer — so check the official site before driving over.

Standard general admission tickets cover a full guided walkthrough, the ASMR room, the slime fall (poncho included), the kinetic sand pit, and one slime to take home from the DIY Bar. Bigger packages — sometimes called Sloomoo Plus or VIP — add a larger custom slime, a glitter dunk, and faster entry. Birthday parties book the private room and run roughly $50 to $75 per kid depending on the package.

• General admission: $25.99-$45 depending on day and time slot
• VIP / Sloomoo Plus: $40-$60, includes upgraded slime
• Slime Fall add-on: included with all tickets; bring an old t-shirt if you're squeamish about the poncho
• Toddlers under 2: free with a paying adult
• Group rates available for parties of 10 or more

Age-appropriateness and what kids actually do there

Sloomoo skews to ages 6 through 13. Older teens go and have fun in an ironic-Instagram way; younger toddlers can be overwhelmed by the noise and the LED color shifts in the ASMR room. The whole space is built for hands-on interaction — kids stir massive vats of slime, pull at floor-to-ceiling slime curtains, and squish through a kinetic-sand pit big enough to lie down in.

Adults: be prepared to participate. There's not really a watch-from-the-bench mode. Wear shoes that can get slime on them, leave the suede at home, and bring a hair tie if your kid has long hair. Sloomoo provides ponchos for the slime fall, but slime still ends up everywhere, including the soles of your shoes when you walk out.

If your kid is on the sensory-sensitive side, the loudest moments are the ASMR room (which paradoxically has the most ambient sound) and the slime fall countdown. Staff will let you skip activities; nobody pushes.

The DIY Bar is the part everyone remembers

The actual centerpiece of the visit isn't the slime fall — it's the DIY Bar at the end. You sit at a counter, pick a base (clear, butter, cloud, glassy), add a scent from a wall of options (cotton candy, fresh laundry, sour apple, more), then choose your mix-ins: foam beads, glitter, charms, color shots. The staff calls themselves Slimetenders and they're patient with indecisive 8-year-olds in a way that should qualify for sainthood.

The finished slime goes home in a sealed plastic tub roughly the size of a deli container. It'll last weeks if your kid keeps the lid on. It won't last weeks.

What else to do in the area after

Marq*E itself has an AMC, a Dave & Buster's, and a handful of chain restaurants — fine for a quick post-slime meal but nothing destination-worthy. The better plan is to head 10 minutes east into Memorial for actual food, or drive 15 minutes south to Buffalo Bayou Park if the kids still have energy. If they don't, Memorial Park is the closest place to drop on a blanket and let everyone collapse.

Slime-adjacent rainy-day options nearby: Meow Wolf Houston if your kids are old enough for the trippy art-house energy, or any of the free kids activities we've mapped out elsewhere on the site.

Tips from parents who've done it

A few things that aren't on the official site but everyone learns the second visit. First, the photo opportunities are the actual product. Sloomoo Houston has a wall of TikTok-bait — the slime fall, the rainbow-vat room, the under-the-counter glow shelves — and the staff is trained to take phone photos for you at every one. Hand them your phone, they'll do it. Second, save the slime fall for last. The poncho doesn't keep the slime off your hair completely, and you don't want to walk through the rest of the museum sticky. Third, the gift shop is positioned exactly between the slime fall and the exit, and it is full of impulse-purchase slime kits at $15-$30 each. Decide before you walk in whether the gift shop is part of today's budget.

Birthday parties are a separate booking and a separate room. The private party setup includes a dedicated Slimetender, an extended DIY Bar session, and a slime fall window without the rest of the museum crowd. Pricing is per-head and varies by package, but a 12-kid party will run somewhere in the $700-$1,200 range total. That's not cheap, but for a 7-year-old's birthday it's roughly the cost of a kids' restaurant party with significantly more memorable photos.

Accessibility-wise, the space is fully wheelchair accessible — all installations are at ground level, the slime fall has a no-stand option, and the DIY Bar counter has lowered sections. Strollers can be left at the front desk. Restrooms are clean. There's no food sold on-site, but you can step out and re-enter.

Is it worth it?

Yes — once. Sloomoo is a one-and-done experience for most families. You walk away with a custom slime, ten minutes of slime-fall video, and a kid who's spent 90 minutes fully off a screen. That's the math. Repeat visits make sense for birthday parties or for kids deep in the slime-creator pipeline, but a single visit is the more common play, and the one most parents come away from happy with.

Book at least two days ahead on weekends — afternoon slots fill first. Bring a change of clothes if you've got a slime-fall kid. And if you've been pricing kids' activities lately, Sloomoo is at least more memorable than a $25 trampoline-park session. For more things to do in Memorial, or to see what's happening this weekend across the city, check the full Houston entertainment hub.