Finally, I tried to learn to use Wintermute because I read WME is more powerful than AGS. But, although I put WME in Spanish and I was reading the manual, my face was some like...
Then, I garthered my courage and patient...
...and I continued trying it...
...but...
...and I felt like...
And finally... zzZZZz
So I dismissed WME by now.
Maybe, I'll try it in a future... when I will be tired with AGS and GM ^^'.
