eSports developer Valve Corporation has essentially told Washington state gaming regulators to prove that its facilitating ‘skin betting’ via its online marketplace or else stop grandstanding already.

Two weeks ago, the Washington State Gambling Commission (WSGC) issued a statement saying it had warned Valve to “immediately stop allowing the transfer of virtual weapons known as ‘skins’ for gambling activities through the company’s Steam Platform.”

In a letter first obtained by Techraptor, the Bellevue, Washington-based Valve – the folks behind the popular Counter Strike: Global Offensive eSports title – responded to the WSGC by saying it has explained “on multiple occasions” that Valve “is not engaged in gambling or the promotion of gambling, and we do not ‘facilitate’ gambling.”

Valve says there is “no factual or legal support” for the WSGC’s accusations, and says it was “surprised and disappointed” that the WSGC “chose to publicly accuse Valve of illegal activity and threaten our employees with criminal charges.”