65+ Halloween Happenings On The Cheap Around Denver For Kids & Adults in 2026 – Updated!

Mile High Cheapskates love this time of the year. The ghouls, ghosts, zombies and witches are flying about the beautiful Colorado skies. Denver, Boulder and all points in between offer an abundance of Halloween activities for kids and adults. You don’t have to wait until October 31 for all the free and low-cost fun, with dozens of happenings filling the days and nights before All Hallow’s Eve.

Check out our list below for what’s on for 2026 (FREE to the best of our knowledge, unless indicated otherwise).

If there are any we’ve missed, email us the details at info@milehighonthecheap.com and we’ll do our best to get them added to the list.

If you need ideas on ways to save, check out 15 Ways to Celebrate Halloween Without Spending a Scary Amount of Money.

Events are sorted by date and then by start time.

Halloween Events For 2026

To avoid any disappointed trick-or-treaters, we encourage you to click on individual event links for the latest information before heading out. Note: Some events require pre-registration or ticketing in advance. Events are FREE unless otherwise noted.

Sunday, October 11, 2026

Spooky Streets Stroll at The Orchard, Westminster

11 a.m. to 2 p.m. Trick or treat through the complex. Participating stores with candy will have a balloon at their entrance. Plus, free face painting, carnival games and entertainment. Don’t miss the pumpkin patch where, for a $5 to $10 donation benefiting Food for Hope, kids can pick and decorate their own pumpkins. Also check out the magical treasures at the creepy-cool Macabre Market (Market is open until 5 p.m.). 14697 Delaware St., Westminster.

Monday, October 12, 2026

Glendale Halloween Trunk or Treat & Movie Night at Infinity Park

4:30 p.m. At Festival Plaza in Infinity Park. Trunk or Treat starting at 4:30 p.m. features  games, costume contest and candy! Starting at 6 p.m., enjoy the movie Monsters vs. Aliens. Don’t forget to bring a picnic blanket and chairs. Food trucks onsite. Parking in the P1 parking lot. at the NE corner of Kentucky Ave. & Cherry St., Glendale.

Thursday, October 15, 2026

Trunk or Treat at DSST:Elevate, Denver

6 p.m. to 8 p.m. Trunk or treating and food trucks. Special appearance by Colorado Rockies mascot Dinger. Elevate cheerleader performances. Costume contest, music, dancing and giveaways, including gift cards and Colorado Rapids tickets. 10825 E. 47th Ave., Denver.

Saturday, October 17, 2026

Aspen Grove Monster Bash, Littleton

12 p.m. to 5 p.m. Trick or treating at participating stores. Enjoy games, bounce houses, face painting, hayrides and more at Aspen Grove. Costumes encouraged. Shop 100+ local makers at Mystikal Makers Market. Food and drink available for purchase. RSVP for the event here. 7301 S. Santa Fe Dr., Littleton.

Castle Rock Spooktacular

1 p.m. to 4 p.m. Follow the trick-or-treat trail for candy and treats, then brave the Millhouse Manor scavenger hunt and visit the bubble monster. Decorate a masterpiece at the Pumpkin Picasso station, make sand art with the mad scientist, try other craft stations or concoct your own witch’s brew at the spooky soda station. Food trucks on-site. This free event is held outdoors, so dress appropriately. Philip S. Miller Park, 1375 W. Plum Creek Pkwy., Castle Rock.

Mines Museum Spooktacular, Golden

2 to 5 p.m. Come in costume, enjoy STEM themed hands-on activities (and treats), win prizes, and take pictures with Ms. Colorado herself. Also Mr. Bones, face painting,  Blaster the burro and spooky exhibits. 1310 Maple St., Golden.

Frights on Fifth, Frederick

3 p.m. to 5 p.m. Trick-or-treat at shops along Fifth Street in Downtown Frederick. Plus, at 4 p.m. participate in the Big Beast Bazaar pet costume contest for prizes.

Northglenn Safe Street Halloween

4 p.m. to 7 p.m. A literal street of trick-or-treat fun outdoors on Kennedy Drive along Centennial Park. The 2026 event will have a Haunted Mansion theme. There will be stops provided by Northglenn High School student groups, spooky inflatables, music and trunk-or-treat cars from area businesses.

City-sponsored stops will have allergy-free Halloween toys/giveaways available – just ask if you prefer an item to candy.

Sponsored by the Northglenn Police Dept. Plan time to park (at the northwest lot of the Northglenn Marketplace) and walk to the event. Centennial Park, 275 Kennedy Dr. (north of the Northglenn Marketplace at 104th Ave. & I-25).

Broadway Halloween Parade, Denver

6 p.m. to 9 p.m. Features 70+ spooky floats handing out candy, bands, dancers, marchers and more traveling down Broadway from 5th Ave. to Alameda Ave. Join in the fun by wearing your favorite Halloween costume (your pooches, too). Viewing areas are available along the entire route on both the east and west sides of Broadway. Get there early to set up for a spook-tacular good time.

Thornton Trunk or Treat

6 p.m. to 9 p.m. Children spend the evening going from trunk to trunk, collecting candy from volunteers who have decorated their vehicles to serve as a backdrop for this spooktacular event.

Be sure to stop by the Garden of the Ghouls haunted walk (best for ages 10+) for more Halloween thrills and chills. The Boo Bayou children’s area is perfect for the younger spooks.

Food trucks on site selling drinks and snacks. Admission: $5 per person, $15 per family of 4.

NOTE: Due to the popularity of this event, the admission line will be cut off and the parking lot will be closed prior to the end of the event in order to adhere to the 9 p.m. closing time. Carpenter Park Fields parking lots, 108th Ave., & Colorado Blvd.

Tuesday, October 20, 2026

Boulder County Trunk or Treat

4 p.m. to 7 p.m. At Boulder County Sheriff’s Office. Enjoy Halloween safely while exploring cool decorated cars and costumes. Bring your little ghouls and ghosts and dive into some festive fall fun. Costumes encouraged! Reserve a spot here. 5600 Flatiron Pkwy., Boulder.

Friday, October 23, 2026

Trunk or Treat at Clear Creek Valley Park, Arvada

4 p.m. to 6 p.m. Fun and safe evening of trick-or-treating sponsored by Adams County Sheriff’s Office, Adams County Fire and Hyland Hills Parks & Recreation. Meet first responders and community organizations. Held at Clear Creek Valley Park, 3700 W. 58th Pl., Arvada.

Spooky Streets at SouthGlenn, Centennial

4:30 p.m. to 7:30 p.m. Safe, fun for kids and families in Commons Park. Kids’ entertainment, face painters, balloon artists, special characters, photo booth and spooky photo ops, dancing and plenty of surprises—including costumed goats for meets, treats and photos. NOTE: This is NOT a trick-or-treating event, but rather a celebration of the season. 6851 S. Gaylord St., Centennial.

Firestone Halloween Safe Night, Firestone

5 p.m. to 8 p.m. Firestone Police Department offers a safe alternative to trick-or-treating. This event offers a trunk-or-treat, inflatables, obstacle course, a trackless train for wild rides, safety handouts, food trucks, a goody bag for attendees and more. Firestone Regional Sports Complex, 6850 Tilbury Ave., Firestone.

Trunk or Treat at Cook Park Rec Center, Denver

5 p.m. to 7 p.m. Outdoor climbing wall, lawn games, inflatable obstacle course, haunted house and trunk or treating. Cook Park Recreation Center, 7100 Cherry Creek Dr. South, Denver.

Trunk or Treat at DSST:Cole, Denver

5 p.m. to 7 p.m. 6 p.m. to 8 p.m. Trunk or treating and food trucks. Special appearance by Colorado Rockies mascot Dinger. Cole drumline and cheerleader performances. Music, dancing and trunk decorating contest with prizes including gift cards and ski passes. 3240 Humboldt St., Denver.

Denver Trunk or Treat, Centennial

5 p.m. to 7 p.m. Held at the NAPA Center. Wear your favorite costume and join in a fun-filled Trunk or Treat with decorated trunks, candy, games, and family-friendly fun. 11211 E. Arapahoe Rd., #Unit 118, Centennial.

BOO-rific Bash & Splash, Littleton

6 p.m. to 8 p.m. Indoor event at Ridge Recreation Center. Dress in full costume, trick-or-treat among community business tables and fun activities. Swimming is included (swimsuit required). Admission: $5 per child, adults FREE. Pay in advance or pay at the door. 6613 S. Ward St., Littleton.

FunFest Trunk or Treat, Thornton

6 p.m. to 8 p.m. Hosted by North Metro Church and Stellar Elementary. Candy from decorated trunks. Costumes encouraged. Geared to kids from toddler to grade 5. 12505 Colorado Blvd., Thornton.

Stoney’s Uptown 9th Annual Pumpkin Carve, Denver

7 p.m. to 10 p.m. Head to the famed bar and grab a seat, a pumpkin, a carving kit and a pumpkin beer and get ready to create while spooky movies play. $14.64 ($12 ticket + fee) covers one kit, and can include however many people you want in your party. Reservations required. 1035 E. 17th Ave., Denver.

Saturday, October 24, 2026

Fall-O-Ween, Aurora

10 a.m. to 3 p.m. Southlands celebrates with a Trick or Treat Trail, the Fall Festival & Pumpkin Patch, plus Howl-O-Ween Dog Costume Contest benefiting the Aurora Police Foundation. Show off your best costume, bring your biggest bag, and prepare yourself to get a spookily large amount of candy from participating Southlands retailers.

K-Pop Demon hunter shows at 10:00, 10:45 and 11:30 a.m. (stage located at the corner of E. Commons Ave. and S. Main Street). Plus, they’ve hidden five golden pumpkins throughout the center — find one and claim your prize at Guest Services at the Clock Tower. 6155 S. Main St., Aurora.

Trick or Treat On Havana Street, Aurora

11 a.m. to 1 p.m. 30+ shops at Gardens On Havana will hand out candy to trick-or-treaters. Halloween Costume Contest at the Aurora Police Dept. Substation (1250 S. Ironton St., #120, near VASA Fitness – formerly Dick’s Sporting Goods). Come in your Halloween costume & take a photo at to enter the contest. Categories include Adult, Child, Group and Pet. Gift cards from the On Havana Street shops awarded to the winners. 10551 E. Garden Dr. Aurora.

Fall For YOU, Aurora

11 a.m. to 4 p.m. Accessible and affordable activities for everyone. Enjoy holiday shopping, interactive games, circus performers, chalk art, doppelganger dash, and more. Tickets $15 in advance, $17 at the door. Arapahoe County Fairgrounds Event Center, 25690 E. Quincy Ave., Aurora.

Boo-Mar, Lakewood

Noon to 3 p.m. Belmar shopping district hosts FREE trick or treating and fun activities for all ages. Kids can enjoy face painting, balloon twisting, and Halloween crafts before heading out for trick-or-treating at participating Belmar shops.

Don’t forget the costume parade! It’s the perfect opportunity for kids to show off their Halloween creations and enjoy their moment in the spooky spotlight. Halloween activities are in the Plaza. 7337 W. Alaska Dr., Lakewood.

Growloween, Denver

Noon to 6 p.m. Hosted by Three Dog Bakery. This event is trick-or-treating around the LoHi neighborhood for your DOG! There will be treats for the pups and their humans. A costume contest, plus special treats and goodies will be available at the Bakery.

Tickets are are required! Per dog participating: $15 for General Admission registration. $25 for VIP tickets which include goodie bag, special treats and a designated check-in area. Costume Contest with prizes. Categories include small dog, medium dog, large dog, and group costume. 1503 Boulder St., Denver.

Englewood Trunk or Treat Express

1 p.m. to 6 p.m. Held at Belleview Park’s Farm & Train. Family-friendly haunted train ride, interactive activities and plenty of candy for kids. Costumes are encouraged for all ages. Tickets $5 per person. Get tickets here. 5001 S. Inca Dr., Englewood.

Trunk or Treat On Mainstreet, Parker

2 p.m. to 5 p.m. Trick or Treat on Mainstreet with candy, goodies and Halloween fun including music, entertainment and more. (Special Sensory Sensitive Trick or Treat Hour from 1 p.m. to 2 p.m.) Event is FREE, but kids MUST register as there is limited ticket entry and a timed entry to ensure this event is enjoyable for everyone. There are 2,500 tickets available. Go here to sign up. Starts behind Parker Station (in the parking lot) at 19751 Mainstreet, Parker.

Trick or Treat at Larimer Square, Denver

2 p.m. to 6 p.m. Family-friendly celebration that transforms Denver’s most historic block into a spirited trick-or-treat destination. Little ghosts, ghouls and their grown-ups are invited to collect candy from participating Larimer Square businesses. Also: a costume contest, Fall activities and a professional photo booth.

Boo! on Briggs, Erie

3 p.m. to 6 p.m. Downtown Erie becomes eerie. Enter the family costume contest, enjoy music, face painting, and all the fa-boo-lous festivities. There will be plenty of candy to go around. Briggs Street in Downtown Erie.

Bethlehem Lutheran Church Trunk or Treat, Littleton

3 p.m. to 5 p.m. Candy, games, and community fun. Come in costume, explore creatively decorated trunks, and a scavenger hunt. Everyone is welcome! 10304 W. Belleview Ave., Littleton.

Carnival of Costumes & Trunk or Treat, Centennial

3 p.m. to 5 p.m. Hosted by GracePoint Community Church. Trunk-or-Treat meets fall festival at this event with carnival games, family fun, candy, food, hoedown, face painting and more. 90 E. Orchard Rd., Centennial.

Trunk or Treat at Colorado Movement Lab, Westminster

3 p.m. to 6 p.m. Come by Colorado Movement Lab for some sweet treats. Tour the studios and get a sneak peek of New Paradigm Dance Theater’s “Nutcracker Reimagined!”9910 Wadsworth Pkwy., Westminster.

Lyons Halloween Spooktacular

4 p.m. to 7 p.m. Community celebration and costume parade through downtown Lyons. Games at Lyons Elementary School from 4 p.m. to 5:30 p.m. Parade down Main Street at 6 p.m. followed by trick or treating at local downtown businesses. Chili Cook-off at 4:30 pm at Main Stage Brewing, brought to you by the Lyons Garden Club.

Haunted Trail Adventure at Bear Creek Lake Park, Lakewood

4 p.m. to 7 p.m. Walk along the Owl Trail and discover the critters of the night. This family-friendly event will explore the misunderstood and sometimes spooky animals that call the park home. Wicked fun carnival games (included in admission), campfire with marshmallow roast and photo booth. Admission: $5 per person, kids 3 and under FREE. You MUST register in advance. Walk-ins NOT permitted. Register online here. 15600 W. Morrison Rd., Lakewood.

Trunk or Treat at Peak Martial Arts, Thornton

4 p.m. to 7 p.m. Open to all. Includes a walk-through the Trunk-or-Treat lot (tons of candy!), haunted bus, indoor games, photo ops and prizes. Concessions available for purchase. Costumes welcome. Bring a bag or bucket to hold candy. Admission: $2. All participants must register! 12421 Washington St., Thornton.

Trunk or Treat AND Trick or Treat Street at Grace Presbyterian Church, Littleton

3 p.m. to 5 p.m. Explore creatively decorated car trunks filled with candy and surprises. Then, stroll down a spooky street inside the church and collect treats and games from various stations. Dig through the haunted hay patch for pumpkins and prizes. Enjoy Halloween-themed games and crafts for all ages. 7900 Hope Pl., Littleton.

Treat Street, Brighton

5 p.m. to 7 p.m. Trick-or-treating at Brighton Park. Safe, festive evening filled with costumes, candy and community spirit. Held outside Brighton Rec Center. 555 N. 11th St., Brighton.

Halloween Monster Mash, Superior

5 p.m. to 8 p.m. A fang-tastic evening of spellbinding craft stations, sinking your teeth into spooky games and frightfully-fun free face painting. Main Street will transform into Trick-or-Treat Street, where little pumpkins can collect sweets from Downtown Superior storefronts, along with local businesses hosting festive Trunk-or-Treat booths.

Make sure to come dressed for our spook-tacular costume contest! While prizes are reserved for the youngest costumed creatures, everyone is encouraged to join the fun by dressing up. Superior Civic Space, 2250 Main St., Superior.

Sunday, October 25, 2026

Fall For YOU, Aurora

11 a.m. to 4 p.m. Accessible and affordable activities for everyone. Enjoy holiday shopping, interactive games, circus performers, chalk art, doppelganger dash, and more. Tickets $15 in advance, $17 at the door. Arapahoe County Fairgrounds Event Center, 25690 E. Quincy Ave., Aurora.

Halloween on the Promenade, Loveland

12 p.m. to 3 p.m. A free, family fun event, offering costume contest and safe trick-or-treating at participating vendor booths and stores at the Promenade Shops at Centerra. Colorado’s largest bubble tower, face painting, balloon twisting, adoptable pets, local vendors, live music and costume contest, pet costume contest, the Ghostbusters of Colorado United, police cars and fire truck, Colorado Cars & Coffee (classic cars), Slapshot from the Colorado Eagles, and more!

Children receive a trick-or-treat bag that can be used for visiting vendor booths and Promenade Shops stores. Free pumpkin for children provided by Bartels Farm (bags and pumpkins available while supplies last). 

RSVP here for the chance to win prizes. Winners drawn the week of the event and you can pick up on site. 5971 Sky Pond Dr., Loveland.

Harvest Festival & Trick or Treat Street at Highland Square, Denver

2 p.m. to 5 p.m. Free community event held along 32nd Ave. from Perry to Lowell. Costume contest, pumpkin patch, jump castle, performance from a local acoustic band, a beer garden, kid’s games, and, of course, Trick or Treating at neighborhood businesses along 32nd Avenue.

Bethlehem Lutheran Church Trunk or Treat, Lakewood

3 p.m. to 5 p.m. Candy, games, and community fun. Come in costume, explore creatively decorated trunks, and a scavenger hunt. Everyone is welcome! 2100 Wadsworth Blvd., Lakewood.

Wednesday, October 28, 2026

Green Valley Ranch Community Trunk or Treat, Denver

4 p.m. to 7 p.m. Held at Green Valley Ranch Beer Garden. Candy, face painting, live DJ, games, activities, food and drink specials. 4995 Argonne St., Denver.

YMCA of Metro Denver Trunk or Treat

4 p.m. to 6 p.m. Decorated trunks, treats and fun activities. Located in the far west parking lot at University Hills YMCA. 3901 E. Yale Ave., Denver.

Denver BOOnion Station

4 p.m. to 7 p.m. Trick-or-treating in Union Station’s merchant shops, a costume contest, mini-train rides and face painters. Judging for the costume contest begins at 5 p.m. At 6 p.m., prizes awarded for first, second and third place overall costumes.

Mile High Trunk or Treat at Empower Field, Denver

4 p.m. to 8 p.m. HUGE event at Empower Field (Parking Lot C) hosted by Far East Center and Denver Police Department. Music, games, food, acrobats, fire show, KPop dancers, pumpkin decorating stations and entertainment for all ages. Explore decorated trunks full of candy and come dressed in your best costume for a chance to win prizes. Movie screening, too. Parking is in Lots B & D.

Mile High Trunk or Treat is free! Every attendee, including children, must have their own free ticket. Please register EACH person in your group before arriving.

Thursday, October 29, 2026

Halloween Party at DSST: College View, Denver

5 p.m. to 7 p.m. Indoor trick or treating and food trucks. Costume contest, student performances, free haircuts + hair tinsel, free face painting and temporary tattoos. DJ, music, dancing and giveaways. 3111 W. Dartmouth Ave., Denver.

Friday, October 30, 2026

Fangtastic Festival, Castle Rock

11 a.m. to 2 p.m. Costumes, candy, booth-to-booth trick or treating, face painter, balloon artist, Halloween music, food trucks and more at Festival Park, 300 2nd. St., Castle Rock.

Trick of Treat Trail, Evergreen

4 p.m. to 8 p.m. Buchanan Park Ball Fields with booths to trick-or-treat through, inflatables, food trucks, and more. Movie screening of E.T. follows at sunset. Tickets ($5 + fees) MUST be purchased for all trick-or-treaters. Get them here. All other ball field activities are free to the public for the October Movie in the Park featuring E.T.

Hyland Hills’ Halloween Trick-or-Treat Spooktacular, Westminster

5 p.m. to 7:30 p.m. Held at Adventure Golf & Raceway. Trick-or-treat stations along three mini-golf courses, family-friendly Haunted Maze, photobooth station, glitter tattoos and balloon artist. $5 Meal Deal includes hot dog or hamburger, chips, and drink. 9650 Sheridan Blvd., Westminster.

Halloween Party at Odyssey Beerwerks, Arvada

6 p.m. to close. Pet and adult consumer contests. Mediterranean Madness Food Truck and DJ Mike Rich spinning records. 5535 W. 56th Ave, Arvada.

Brass & Bones: A Spangalang Halloween Party, Denver

7 p.m. to 10 p.m. Halloween costume party and live concert featuring Denver’s own Brothers of Brass. Craft beer, cocktails & Spangalang BBQ. Costumes encouraged. Admission: $10. Spangalang Brewery, 2736 Welton St., Denver.

Saturday, October 31, 2026

Longmont Halloween Parade & Trick or Treat Street

Come in costume and line up starting at 9:45 a.m. at Roosevelt Park (700 Longs Peak Ave.) Parade starts at 10 a.m. and loops around Main St. (strollers and wagons recommended for small children). When the parade ends, the fun keeps rolling with Trick-or-Treat Street along Main St. Local businesses will be handing out candy and goodies until the treats run out.

Northglenn Christian Church Trunk or Treat

1 p.m. to 3 p.m.  Collect candy from plenty of cool cars and decorated trunks. Costumes encouraged. 1800 E. 105th Pl, Northglenn.

Munchkin Masquerade, Boulder

3 p.m. to 6 p.m. Trick-or-treating on Boulder’s Pearl Street Mall (11th to 15th Sts.) rain or shine. Tiny ghosts & goblins, fairies & wizards, super heroes and more trick or treat up and down the street. Best for ages 12 and under.

Halloween Walk in Downtown Evergreen

4 p.m. to 6 p.m. Superheroes, Disney characters, dinosaurs and witches take to main street during the Downtown Evergreen Halloween Walk. Merchants open their stores to welcome costumed kids with a sweet treat or two. This is a fun, relaxing late-afternoon event which leaves plenty of time for trick-or-treaters to make a few more stops before they turn into “pumpkins.”

Monster’s Ball at Spangalang Brewery, Denver

5:30 p.m. to 9 p.m. Live music, costumes, food, drinks and Halloween fun. Beasts of No Nation takes the stage at 7 p.m. Come dressed to impress — costumes are highly encouraged for a Halloween Costume Contest with prizes. Come early for a $20 Open Bar Special from 5:30 p.m. to 6:30 p.m. Food and drink specials all night. Admission: $12.50 in advance. 2736 Welton St., Denver.

Calvary Church of Denver Trunk-or-Treat, Denver

6 p.m. to 8 p.m. Open at all. Dozens of decorated car trunks filled with candy, games and family activities, hot chocolate, treats, and snacks, great photo spots and festive decorations. 5900 E. Yale Ave., Denver.

Motown Haunted Prom, Boulder

6 p.m. to 10 p.m.  Travel back in time to take you on a journey across your AM radio dial on a Halloween night in the 1960’s. Bringing you a modern interpretation of the classic revue-style performances of classic Motown and Memphis Soul, featuring three vocalists including DZIRAE GOLD, Aleik Maddox, and Jon Oren. Full cash bar. Admission starts at: $29.63. Roots Music Project, 4747 Pearl St., Ste V3A Boulder, 80301.

Leftoween in the Garden, Longmont

6 p.m. to 9:30 p.m. Punk theme this year. Live music by Skinny Khakis, The Walking Corpses and Pinfield Suites. 1245 Boston Ave., Longmont.

Halloween Party at New Terrain Brewing, Golden

6 p.m. to 10 p.m. Live music from Foggy Mountain Spaceship. Costume Contest with prizes around 7:15 p.m. Prizes are New terrain gift cards. Cilantro & Perejil and Fanwich food trucks on site. 16401 Table Mountain Pkwy., Golden.

Last Stop at The Highlands Ranch Mansion, Highlands Ranch

6:30 p.m. to 9 p.m. End your Halloween night at the Mansion and Historic Park. Ghouls and goblins of all ages are invited to this FREE outdoor-only event. Enjoy music, dancing, a trick-or-treat stop and cash bar. Note: Parking is limited. 9950 E. Gateway Dr., Highlands Ranch.

The Cosmic Howl at Meow Wolf, Denver

8 p.m. to 1 a.m. The ultimate Halloween house party returns to the portals of Convergence Station. Live music, cocktails, costume contest, bingo (with prizes), photo booth and more. Admission: $61.75. 1338 1st St., Denver.

Nocturnal Adult Halloween Costume Party, Denver

9 p.m. to 2 a.m. Held at Bierstadt Lagerhaus. Live music, DJs, oversized games and a chance to win the city’s largest costume cash prize of $2,500. Cash bar upgrade. Admission: $30. 2875 Blake St., Denver.

Coloween, Lafayette

9 p.m. to 3 a.m. Held at Bounce Empire. Tickets include every one of 50 attractions including slides, obstacle courses, bounce dome, etc. Colorado’s top house DJs. Open bar all night included in every ticket. Nine party rooms. Costume required. Admission: $79. 1380 S. Public Rd., Lafayette.