Acid Software said yesterday that purchases of "Active Shooter" were temporarily suspended as it tried to resolve the issues with PayPal.
Acid's Twitter postings included the hashtags "QuitCensoringUs" and "FreedomOfExpression.".
A PayPal spokeswoman today said it doesn't allow its services to be used to promote violence.
"Active Shooter" allows players to participate in simulated school shootings and has drawn complaints by anti-gun violence advocates including parents of children killed in school shootings in Parkland, Florida, and Newtown, Connecticut.
(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)