Riot Fest, the city’s premier punk‑rock and alternative music gathering, opens on Saturday at Douglas Park with general‑admission tickets starting at $130. The announced headliners—Twenty One Pilots, Tool, Pierce The Veil and Nas—anchor a bill that also showcases local acts such as Twin Peaks, Alkaline Trio, Almost There But Not Really and more, giving Chicago’s indie scene a prominent stage.

The festival runs through the weekend, and organizers say tickets are still available for purchase online, offering a range of options from single‑day passes to full‑festival bundles for fans who want to catch every set.

In parallel, Chicago Live, billed as the Midwest’s largest free performing‑arts festival, returns to Navy Pier. The free event highlights a headline performance by Chicago rap legend Common on Saturday, alongside appearances by the Joffrey Ballet, the Q Brothers and Hubbard Street Dance, providing a multi‑genre showcase for the city’s artistic community.

The second‑longest‑running LGBTQ+ film festival, the Reeling Festival, continues its run at two downtown cinemas through Sept. 27. While Thursday’s opening night screening of “La Bola Negra” sold out, dozens of additional shorts, dramas, comedies and musical films remain on the schedule, many paired with collaborations that include free drinks and curated bites.

Hispanic Heritage Month is marked by a string of cultural celebrations, beginning with the Old Town Oktoberfest’s return. The Bavarian‑style festival offers bratwurst from Paulina Market, pretzels, German beer, a stein‑holding contest and outdoor football screenings, with a suggested $10 donation at entry.

Shuga Records hosts a “lazy day” sale of used vinyl, DVDs, books, VHS tapes and CDs, offering half‑off items under $100 and 30 percent off items over $100 through Friday, giving collectors a chance to stock up on physical media at a discount.

The Lakeview East Festival of the Arts transforms the neighborhood into an open‑air market with over 150 artists and vendors, live music and family‑friendly activities, and asks for a $5 donation upon entry.

Chicago Vintage Fest, in partnership with the Albany Park Chamber of Commerce, brings more than 50 vintage‑clothing and handmade vendors to an outdoor market, with the first attendees receiving a complimentary tote bag.

Wrightwood Park’s Dumpling Fest, organized by the Chicago Cultural Alliance, showcases ten restaurants offering their take on the beloved dumpling, live cultural performances and a street‑festival atmosphere; tickets start at $10.

Media Burn Archive’s third Thursday series returns with surprise vintage educational videos screened for free, encouraging audiences to dress comfortably for an unpredictable viewing experience.

The Wicker Park Wine Wobble invites participants to wander Division Street while sampling at least 12 two‑ounce pours of wine, with registration at $35 and a same‑day price of $45.

Common Threads, a queer and POC‑focused film series, screens the 2018 romance drama “Rafiki” for free, inviting the community to explore its vibrant storytelling.

Studio15’s Bears‑themed paint‑and‑sip event supplies canvases, paints and BYOB options for adults 21+, with tickets priced at $33.85.

Latine art gallery Raíces opens its doors Friday night for a multi‑artist exhibit that highlights Latin American heritage, small‑business vendors and a traditional game of lotería, all free to the public.

Chicago Story Fest, themed around villains and fear, presents live storytelling and conversation with award‑winning journalists and comedians; tickets start at $40.

The Institute for the Study of Ancient Cultures Museum hosts an all‑day neo‑gothic architecture sketching meetup, free and open to anyone interested in drawing historic campus sites.

Historic Lakewood Balmoral residents organize a three‑block community yard sale, offering second‑hand goods and clothing in a rain‑or‑shine, free‑admission event.

A trail tour of the Far South Side’s Underground Railroad history, led by the Forest Preserves of Cook County and the Midwest Underground Railroad Network, provides free registration and insight into escaped‑slave routes along the Little Calumet River.

Back of the Yards Coffee’s In The Yards monthly block party presents a wellness festival featuring a run, pilates, folklórico dancing and treats, celebrating Hispanic culture at no cost.

The Haitian American Museum partners with artist Lowell Thompson and Cranston Ramirez Knight to host a free vendor market around the Uptown Colored Wheel sculpture, spotlighting local creators.

El Son De Antonio Keka brings a Dominican‑Cuban street celebration to Chicago, featuring live son, merengue, bachata and salsa performances, authentic cuisine and artisan vendors; tickets begin at $12.96.

Harmony Grace reinterprets Nina Simone’s catalog in an immersive musical experience at the Epiphany Center for the Arts, with tickets starting at $36.57.

The American Writers Museum’s Great Big Book Swap invites Chicago residents to exchange books for free on the museum’s monthly free‑day, with remaining titles donated to local charities.

The Bryn Mawr Block Party, organized by the Hollywood‑North Park Community Association, offers live music, dance performances, a Jesse White Tumblers showcase and family activities, all free of charge.

Garfield Ridge’s pop‑up market celebrates Hispanic Heritage Month with local vendors offering cultural goods and handmade items, free to the public.

The Maxwell Street Community Garden hosts a harvest festival with face painting, pumpkin painting, a garden maze and seasonal food, welcoming families at no cost.

Blanc Gallery opens an exhibit honoring Oscar Brown Jr., featuring rare photos, album covers and memorabilia curated with the artist’s daughters, Maggie and Africa Brown; the free exhibit runs until Oct. 10.

Growing Home’s “friendraiser” barbecue in Englewood provides farm‑to‑table bites, live music and a glimpse of its urban farm, with tickets at $100 for the general public and $25 for local residents.