It still sees active development, they keep adding new engines regularly. One of the engine I'm excited about is Macromedia Director [1] which they added initial support for in 2.5.0. That's a big endeavour though so will take time until they add everything needed for full compatibilities with a lot of games.
They've also just added support for some of the Dynamix games like Willy Beamish and Heart of China[2] which I absolutely loved as a kid (despite their rather rough edges)
