Oh, I did miss it! Well, the earlier versions of the studios products I actually had messed around with a lot when I was younger. Clickteam Fusion 2.5 is basically what it says, "Drag and Drop game development", it has a lot of plug-ins you can use and the thing I always liked about it most was its 'event' programming. You can either straight-up code things, globally event things, set events. It's kind of the system they've been evolving over the years with things like Games Factory, Multimedia Fusion, etc.
Specializes in 2D games (it technically can do 3D, but I would recommend another engine that'd be much easier to do it in), I personally like it and how verstile you can make everything.
Here's a few games made with the engine:
Five Nights at Freddy's series:
Freedom Planet:
Wings of Vi:
Oniken:
I Wanna Be The Guy:
Eternal Daughter:
Here's a video showing 167 games made with the version before Clickteam Fusion, Multimedia Fusion 2 (basically the same engine but without some advancements of Clickteam Fusion 2.5):
https://www.youtube.com/watch?v=3Zq1yo0lxOU
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It is an easier engine to get into than some, but not the easiest, but it can have a lot of results and if you dig into it can allow for a lot more 'advanced' coding and laying out. It specializes in 2D games and is pretty versatile though. It's also a visual editor, which I like. It codes with a few languages, and has a good playtest engine, and is pretty functional and can port easily to a lot of platforms.