I think that implementing some kind of system that allow the community to create their own mods is not a bad idea. In this way, you can add a lot of content to the game.

Sorry if my English is not good :/

Greetings, SandboxHD

Construct 2 doesn't allow for mod support. People on Discord have unpacked the game and confirmed that it is possible to modify the files, so it might be possible to achieve limited mod support. I'll look into the possibilites after I finish 0.2.6 and I'll make a devlog if I decide to support mods.

And how can I unpack the game for add some features??

Sorry for the late reply, didn't see that you replied.

There is package.nw in the game's files which you can open like an archive and swap/edit files there.  After 0.2.6 (which should make modding a bit easier(?)) is out I'll experiment with what's editable in data.js.