They seem to have imploded. Truth be told, it's a good thing for gamers. Zynga imo has reaped what is sowed. I suspect that the latest round of layoffs and office closures are just the start. That and the company was as usual overhyped. Pretty much their business model was to make inferior copies of other people's games, put them onto Facebook and monetize them. Unsurprisingly such a model has not been sustainable. Apparently their goal now is to try to make money off online gambling.
Anyways, they estimated that 5% of gamers would pay up for their games - which is typical in this industry. I would not be surprised if only 5% of people (or less) that ever installed an STS game ended up becoming paying customers. This is typical in a micro transaction-type game, most users end up uninstalling.
Check this out:
http://www.eurogamer.net/articles/bl...ast-level-10_1
This was WoW, near its peak. An if even the most powerful game in the MMO business has such a poor retention rate, well, less well known games are even worse off.
STS is no different - and it seems to be something that they're working on:
http://www.pocketgamer.biz/r/PG.Biz/...re.asp?c=47232