Finding an ad provider is not as hard as you are making it look like. There are a lot of companies that provide you with monetizing facilities. Ofcourse i’m not talking about slapping ads in the CIU Windows version. They could do some monetization on the mobile version of the older releases of the game ( mobile versions ). There are still people who play those. Yes Microtransactions are as far as PC version can get but atleast they can put some ads on their websites. There are a lot of things they could add in form of microtransactions, for example for $$ you’ll get a Maxed out plasma rifle + 2000 keys and a Bx7, or maybe they can sell custom skins for weapons or ships. Such bundles attract players much more rather than just selling some keys…