The facility initially featured games, playground-style rides, refreshment stands, picnic groves, a hotel, and a restaurant.

In the mid-1940s, PTC built a Cuddle-Up ride at the park, which was later enclosed and heavily air-conditioned in the late 1970s when it was rethemed as The Iceberg, featuring strobe lights and loud music.

The road closing led to the enclosure of the park by fence and the introduction of a single-price admission fee, which eliminated individual ride tickets.

In the fall of 1983, a major fire destroyed a large section of the park, including the Carousel, Bucket O' Blood dark ride, Flying Bobs, and several food stands.

The park replaced the rides in 1984, its 100th anniversary, with the addition of Enterprise, Musik Express, Ranger, and Apollo.

It was originally designed as a portable ride for fairs, but Dorney Park used it as a permanent attraction.

Hercules proved a big hit for Dorney Park in its first four seasons, but became known for its rough, often jarringly shaky ride, due in large part to significant modifications made to Hercules after the park was purchased by Cedar Fair in 1992.

[6] In 1993, a new midway began construction, intending to connect Wildwater Kingdom directly to Dorney Park.

Also in 1993, the park built a flume ride called White Water Landing that plunged riders in 20-passenger boats down an 80-foot (24 m) drop.

In 1995, admission to both Dorney Park and Wildwater Kingdom was offered at a single price for the first time.

In 1998, Dorney Park added a top spin ride called Hang Time.

In 2000, Dorney Park debuted Camp Snoopy, a themed children's play area.

Additionally, a new upcharge attraction, Skyscraper, a Booster thrill ride by Gravity Works, Inc., was installed.

In 2001, a coaster designed by Bolliger & Mabillard (B&M) called Talon was added near the front entrance of park.

In July, the park announced that Hercules would close after the end of the season, and be replaced in 2005 by Hydra the Revenge, a $13 million steel floorless B&M coaster.

On September 22, 2007, Dorney Park announced it would be opening a twisted impulse coaster from Intamin.

The coaster, previously located at Geauga Lake in Aurora, Ohio, debuted in 2000 as Superman: Ultimate Escape, and was renamed Steel Venom when the park was purchased by Cedar Fair in 2004.

Steel Venom was removed from Geauga Lake in 2006 and opened as Voodoo at Dorney Park on May 17, 2008.

The ride was renamed Possessed after the 2008 season to resolve a conflict with Six Flags, which held the rights to the name Voodoo.

In 2012, Dorney Park added Stinger, a Vekoma inverted shuttle coaster formerly located at California's Great America as Invertigo.

[10] On August 28, 2013, Dorney Park announced a new 65-foot-tall (20 m) tall waterslide complex known as Snake Pit would be opened for the 2014 season.

In 2017, Dorney Park reopened their Dodg'ems ride, as well as adding Kaleidoscope, a HUSS troika.

New safety procedures included pre-arrival health screenings, temperature checks, social distancing, limited ride capacity, and mandatory masks.

[20] In July 2021, the park announced that Halloween Haunt and The Great Pumpkin Fest would return in fall 2021.

Dorney Park saw the addition of a stage on the main midway, and several upgrades to Wildwater Kingdom.

[23][24] Dorney Park announced via social media on July 21, 2023, that a new B&M steel dive coaster called Iron Menace would open the next year.

[30] Dorney Park first added a Dentzel Carousel in 1901, and has since grown to include 44 rides as of the 2023 season.

For an additional cost separate from park admission, visitors can purchase Fast Lane passes in the form of a wrist band, which grants them access to a shorter queue available on many popular attractions.

[36] Halloween Haunt currently features 13 attractions including seven mazes and six scare zones, as well as roaming Street Talent sliders and actors, and three live mainstage shows (Opening SCAREmony, Skeleton Crew, The Shrieks).

In 2024, The Great Pumpkin Fest became Tricks and Treats, offering completely different games, experiences, and activities from the previous events.