If you do not want to install browsers, you can temporarily change the date on your computer, specifying earlier than January 12, 2021, (for example, January 10, 2021). And then flash games will work again. Then you can always put the date back in place.
18 U.S.C. 2257 Compliance Notice
In compliance with the Federal Labeling and Record-Keeping Law (also known as 18 U.S.C. 2257), all models located within our domain were 18 years of age or older during the time of photography. All models' proof of age is held by the custodian of records, which is listed below. All content and images are in full compliance with the requirements of 18 U.S.C. 2257 and associated regulations.