The whole thing is around 10000 bytes and I hope to get it under that. I am still writing parts of the code, but here is a summary:
-You start with $100 and 10 fish.
-You can catch more fish just to have or to sell and make more money.
-The main game is trying to see how long you can keep a single fish alive. You do this by feeding it, cleaning its tank, and giving it medicine.
-You can buy food, brushes, and medicine in the shop.
-Minigames are: Deep Fry, Shark!, Bubble+, and Flying fish. I will let you figure those out yourself!
-Whenever you go to the main menu, you will be informed if something has happened. Maybe one of your gold-fish made some money, or maybe some of your food went stale. Who knows?
-The program keeps track of various stats and ten highscores on the main game.
Some answers to questions I have recieved:
-Currently written for a TI-84 (one of the minigames uses time commands) but I will also make it compatible with TI-83+
-Pure TI-Basic, no assembly
-Fishville was not a source of inspiration. The only inspiration I can think of was a virtual bunny program (Bunny Gotchi) that I ran across in the archives on this site. I liked the idea of a virtual pet on a calc and so made my own for fish (although it is much more than just that now). It isn't based off that game, though.
I can post some screenshots if people want me to.