The Force is strong in this fun.

“Star Wars” fans will let their geek flags fly on Thursday for “May the Fourth” or “Star Wars Day,” which plays the calendar date off of the sci-fi series’ famous refrain, “May the Force be with you.”

Whether you’re aligned with the Dark Side or the Light, here’s some out-of-this-world ways to celebrate George Lucas’s 40-year-old space saga – and they’re all much more wallet-friendly than this $1.4 million solid gold Darth Vader helmet available in Japan.

Revisit your beloved Mark Hamill, Carrie Fisher and Harrison Ford onscreen in the original 1977 “Star Wars.” (Everett Collection)

Sales go on hyperdrive: Save 20% to 60% on more than 150 items at ThinkGeek.com through May 6, including an R2-D2 14-liter fridge for $119.99 (from $149.99) and “Star Wars” themed kites for $9.99 (from $39.99). Plus, score a free Maz Kanata pin if you spend $50 or more, and free Maz and Jabba the Hutt pins with orders over $80.

And gamers can save up to 50% on Apple and Google Play “Star Wars” mobile games like “Knights of the Old Republic,” and up to 67% off in-app purchases on select “Star Wars” titles like “LEGO Star Wars: The Complete Saga” and “Star Wars Pinball 4” through May 11. PlayStation and Xbox are also offering “May the Fourth” sales of up to 77% off on “Star Wars” games.

Disney has also discounted its officially licensed “Star Wars” merch, from PJs to action figures, for as low as $10 apiece.

Movie marathons lift off: It’ll be tempting to play “wookiee” from work, since TBS is airing the first six “Star Wars” episodes beginning at 6:40 a.m. EST and running for 16-plus hours, beginning with “The Phantom Menace” and ending with “Return of the Jedi.” If you hate the prequels, skip ’em and catch “A New Hope” beginning at 3:10 p.m. And don’t worry if you can’t miss work; if you rush home, you can still catch “The Empire Strikes Back” starting at 5:40 p.m.

Or host your own movie marathon by buying a bundle of the first six “Star Wars” films in digital format on Amazon for $79.99 , or get the complete saga on Blue Ray from Best Buy for $69.99 (was $109.99).

And for purists who believe these are meant to be seen on big screens surrounded by fellow fanatics, many cities are hosting viewing parties. New Yorkers can catch a free screening of “The Force Awakens” in Rockefeller Park, at the northern end of Battery Park, at 8 p.m. on Thursday.

Dress in your cosplay best for “Star Wars” events across the country. (Kevork Djansezian/Getty Images)

Out of this world concerts: This fall, the New York Philharmonic will accompany screenings of the core “Star Wars” films (pretending those prequels never happened) by performing the iconic John Williams scores live to “A New Hope,” “The Empire Strikes Back,” “Return of the Jedi” and “The Force Awakens.” Tickets go on sale to the public Thursday at at noon. Fans in the NYC-area are also invited to come to the David Geffen Hall Box Office beginning at 9:30 a.m. on May the Fourth for early ticket access, ticket raffles, the Philharmonic’s brass section performing music from the movies, plus attendees in costume get “Star Wars” merchandise. Visit the website for tix and the complete schedule.

Toyland bashes: Now that Disney has drawn Lucasfilms into the Mickey Mouse orbit, select Disney Stores are also hosting special “Star Wars Day” events starting at 8 a.m., such as drawing classes to master sketching adorable droids R2-D2 and BB-8. Kids ages 3 and up are also invited to learn become honorary Rebels by learning defense training against Stormtroopers or how to navigate the Millennium Falcon. There will also be an interactive “Escape from Jakku” storytime. They’re also releasing an exclusive BB-8 pin, which will be $8 with any purchase, or $14.95 on its own.

And Toys “R” Us gets in the game with $10 off all LEGO “Star Wars” purchases of $50 or more through May 6, and 25% off all “Star Wars” figures, role play gear and electronics through May 20. Plus, Toys “R” Us stores nationwide will also host Star Wars LEGO Building Events this Saturday from noon to 2 p.m., where you can build and take home a micro Princess Leia (RIP Carrie Fisher.)