The convention typically offers an arcade, Artist's Alley, car show, charity auction, concerts, cosplay chess, cosplay dating game, dealers room, electronic dances, a formal masquerade, grand cosplay show, Idol Festival, Lolita fashion show, panels, Maid Cafe, tabletop gaming, video games, and workshops.[1][5][7][8][9] The tabletop gaming space is open 24 hours a day during the convention.[10]
The 2014 convention had a blood drive and the charity auction benefited the San Antonio Battered Women and Children's Center.[11] The 2015 convention had a blood drive and some charity funds were donated to San Antonio Pets Alive.[12] San Japan held a blood drive, food drive, and the Charity Auction would benefit disABILITYsa in 2017.[1] The 2018 charity auction benefited disABILITYsa and UTSA East Asia Institute.[13] In 2018, San Japan brought $3.6 million to the local economy.[14]
San Japan used additional space in the expanded Henry B. Gonzalez Convention Center, having 100,000 square feet for vendors and 40,000 for gaming in 2016.[5][21] They also clarified convention policy that no firearms are allowed at the event despite the passage of Texas law HB 910 allowing open carry.[22] San Japan in 2017 was held only a few days after Hurricane Harvey affected Texas.[23] The convention in 2019 announced it would be held at the Henry B. Gonzalez Convention Center until at least 2026.[6] In June 2020, the convention's chairman apologized and later resigned due to comments made about people of color.[24][25] San Japan 2020 was cancelled due to the COVID-19 pandemic.[26][27]
The 2021 event had a attendance cap of 10,000, with mask and vaccination or heath assessment requirements.[28][29]
Airship Isabella, Christopher Ayres, Amelie Belcher, Martin Billany, Diana "Hanyaan" Divine, Kara Edwards, Emirain, Caitlin Glass, Jessie James Grelle, Arin Hanson, Clarine Harp, John Patrick Lowrie, Ellen McLain, Carli Mosier, David "Docjazz4" Ramos, Christopher Sabat, Carrie Savage, The Slants, Sleeping Samurai, Ciarán Strange, and Greg Wicker.[35]
August 16–18, 2013
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel San Antonio, Texas
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel San Antonio, Texas
14,686
Curtis Arnott, Christopher Ayres, Amelie Belcher, Martin Billany, Mr. Creepy Pasta, Florida Whammy Entertainment, Scott Frerichs, HamletMachine, Lauren Landa, Nick Landis, Mary Elizabeth McGlynn, Matthew Mercer, Lisa Ortiz, Powerglove, David "Docjazz4" Ramos, Lawrence Simpson, Sleeping Samurai, Ciarán Strange, Uncle Yo, Fred Wood, and Akira Yamaoka.[37]
Curtis Arnott, Amelie Belcher, Steve Blum, Richie Branson, Jessica Calvello, Svetlana Chmakova, Forrest Cobb, Mr. Creepy Pasta, DJ Cutman, Taylor Davis, Patrick Delahanty, Descendants of Erdrick, Los Ferrand, Scott Frerichs, Gimmick!, Fumiko Kawamura, Mitsuru "Mick" Kouzai, Nick Landis, Lone Stars, Yuji Matsukura, Mary Elizabeth McGlynn, Mega Ran, Lisa Ortiz, Professor Shyguy, David "Docjazz4" Ramos, The Returners, Lawrence Simpson, Ciarán Strange, Vitamin H Productions, Brett Weaver, Greg Wicker, Fred Wood, and Yuka.[39]
September 2–4, 2016
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel San Antonio Marriott Riverwalk[21] San Antonio, Texas
16,346
Curtis Arnott, Amelie Belcher, Bitforce, Kira Buckland, Forrest Cobb, Mr. Creepy Pasta, Ben Creighton, dj-Jo, Los Ferrand, Scott Frerichs, Yumi Fujiwara, Baylee Jae, Michele Knotz, Nick Landis, Lone Stars, Daman Mills, Masayoshi Minoshima, Mint, NateWantsToBattle, Lisa Ortiz, David "Docjazz4" Ramos, ROOKiEZ is PUNK'D, Anthony Sardinha, Stephanie Sheh, Ciarán Strange, Corinne Sudberg, Kirk Thornton, Vitamin H Productions, and Fred Wood.[40]
September 1–3, 2017
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel San Antonio, Texas
17,003
All Off, CapsuleCorp, Ray Chase, Mr. Creepy Pasta, CreepyPastaJr, Ben Creighton, Crusher-P, Robbie Daymond, Scott Frerichs, Haruka Kurebayashi, Nick Landis, Matthew Lassiter, The Living Tombstone, April Martin, Kyle McCarley, MissShadowLovely, Max Mittelman, Naoshi Mizuta, Myuu, A New World, Chris Patton, Genevieve Simmons, Juliet Simmons, Grant Smith, Kirran Somerlade, Ciarán Strange, Kaiji Tang, TeddyLoid, Vedetta Marie, Vitamin H Productions, Greg Wicker, and Lara Woodhull.[41]
August 31-September 2, 2018
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel San Antonio Marriott Riverwalk[2] San Antonio, Texas
Henry B. Gonzalez Convention Center San Antonio Grand Hyatt Hotel[29] San Antonio, Texas
Jules Conroy, Mr. Creepy Pasta, Khoi Dao, Adriana Figueroa, Scott Frerichs, Chris Hackney, Caleb Hyles, Nick Landis, Amanda "AmaLee" Lee, Mason Lieberman, Xander Mobus, and Laura Stahl.[44]
September 2-4, 2022
Henry B. Gonzalez Convention Center San Antonio, Texas
Henry B. Gonzalez Convention Center San Antonio, Texas
24,027
Jon Allen, Leraldo Anzaldua, BPM15Q, Dante Carver, Demondice, Ricco Fajardo, Jessica Gee-George, Grant George, Brian Holder, Caleb Hyles, Shinichiro Ishikawa, Arthell Isom, Hiroshi Kanatani, James Larabee, Bryan Massey, NipahDUBS, Molly Searcy, Moe Shop, Fred Tatasciore, TeddyLoid, Eric Vale, A.K. Wirru, and Jonathan Young.[46]
August 30 - September 1, 2024
Henry B. Gonzalez Convention Center San Antonio, Texas