Yes the engine has started closed testing. Though it is extremely limited at this moment because the map editor isn't finished, I have been able to push out a test version to get a feel for how it will work for others both performance wise and ease of use.
There are a few hiccups though, the entire engine is being made inside GameMaker: Studio, which means previous versions of GM may have a few issues. I have ported the current test version into GameMaker 8.1, making all the necessary changes for that software. Regardless I get some weird errors (stream read error?), understand I have not used GM 8.1 in a little while so I haven't had the time to look over the entire engine for the problem but I am working on it.
I know guys, many of you still like GM8.1 and nothing wrong with that xD I will try and work out any issues and hopefully everything will work out good for it in that version of GameMaker. No link either ;) as I said this is an early test version when I do give a link I want it to have a map editor as that is an important part for keeping the engine simple to use.
Thanks for reading and sticking with me, I know all i have done for about a month is talk about it with nothing to download or show but it's coming!