Quick run down of other included files which are either just example changes or useful tools.
Imma be real and admit I barely have a clue how to properly work with these, but these are how the game stores map info so you could use them to edit or potentially create new floors/levels. This going to be the other interesting one to modify alongside actor.tsv, as you can use this to make boss fights harder or balance moves you consider too strong/weak. If you want to change the music here's the music map from the script.rpy file, but if you want to add custom music you'll want to run the RPA extraction tool. Similar to items.tsv you can't edit a ton with this tsv file either, so this is probably mostly handy if you're making new custom floors/levels, or changing the music. Stores enemy appearance/levels, sprite sets used for dungeon items, and battle music. Mostly useful for if you want to change the cost of items at shops to increase/decrease difficulty.
It does not allow you to modify the code for a given item function (eg: if you want health potions to instantly beat the game when used you'll need to extract the RPA files and modify the python code). Has displayed information on in game items. Here's a labeled example where I made a super bonkers over powered Ceri and renamed her to John Cena: You can also change what face sprites are shown during certain battle actions and even add custom ones, but for any sprite work you'll really want to run the RPA extract tool to see actor sprite assets. Probably overall most useful as it lets you customize the basic stats and attributes of all game characters.
If you have other mods already installed first verify they haven't changed these files beforehand just in case.
I have included a few changed ones as examples though, and I recommend looking through the game guide pdf that's included in your Sakura Dungeon install location for information on skills/abilities/items/etc. Note that the provided files are just the default tsv files used by the game so putting them in your game folder won't have an effect unless you edit them.
In addition to dungeon exploring, Sakura Dungeon is also packed with extensive dialogue and plenty of gorgeous backdrops and cutscene artwork for the player to unlock as they carefully navigate their way through the dungeon.These are the tsv files extracted using RPA extract tool for you to edit to your heart's content. One of the most important mechanics of Sakura Dungeon is the ‘capture’ mechanic, wherein the player will be able to capture monster girls they encounter and add them to their party. She soon discovers that it was a heroic knight who woke her from her slumber, and after a brief fight and “negotiation,” the knight decides to join her on an adventure to reclaim the dungeon! Together, they will unearth great treasures, reveal secrets and hidden rooms, and recruit monster girls to fight by their side.all while avoiding traps, fighting off dangerous enemies and bosses across multiple floors, and uncovering the devious plans of the new dungeon lord. In this story players will assume the role of an ancient fox spirit who awakens after several hundred years of deep sleep to find that possession of her lovingly made dungeon has been taken from her! As if that wasn’t enough cause for alarm, she has also been robbed of her power, leaving her weak and vulnerable.