Custom resource types
There are a lot of potential resource types that I want to use. Plain text, more advanced tilemap formats, that kind of thing.

More specifically, a story-driven RPG would benefit from having an advanced map format that contains triggers, NPC spawn points, and scripts. Also, there are better tools for editing tile maps and tilesets, and as a novice, I could definitely use the help that they can provide.

I can implement them myself as long as I have an octet sequence resource type, but I don't. Alternately, I can make a build step to encode them into python source files, which is a bit awkward.