I've actually been studying Lua a lot lately
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Apparently I also have to study it.
So far I've been using FPS scripts in the game I'm developing, but I find that LUA is much more flexible than FPS script, and it is quite similiar to VB, in other words more familiar to me.

I'm on the 5th level and I need to animate the lava you can see in the image below.

Name: Level6.jpg Views: 316 Size: 19.0 KB

The problem here is that you have to be an artist in 3d graphics (I'm not), or work with the models included in the program, or buy models (entities, segments, prefabs, etc. to third parties.

Personally I prefer to create my own models, this introduces in the game a little about yourself, say it does more original.

Working with particles (rain, fire, snow, fog etc), do not know yet if LUA can help me on this.

@ Shaggy Hiker
Unfortunatelly you're right. BTW Torque3d is open source, perhaps somebody can continue, if needed.