They are based in Pakistan, maybe there this is legal? I got an email response from Gemioli (developers of Tomb Runner) and they said "The exclusive license owner is Spill Games or Azerion at the moment."
I bought that game (Tomb Runner) from Forestry Games, and they sent me a minified JS code and told me "You can unminified the game codes using an online tool or within your coding editor."
I've asked for a refund but I don't think they are going to give the money back, I'll ask my bank what I can do,
They seem to be a scam, just be careful