I'm currently developing a menu only rpg for TI-Nspire in TI-BASIC named Planet at War
My goal is to make a menu only rpg that as got:
-Save/load system
-Money/shop system
-Level system
-A bit of story(still blind here)
-Increasing dificulty(like swamps=very easy then you can move on the the forest=still quite easy, and so on)
-Some bosses along the way
-Three diferent hero classes(Mage, Archer and Warrior)
-6 armour types (Unharmored(yes that counts), Light Armor, Medium Armor, Heavy Armor, Colossal Armor and Divine armor)
-3 attack types (Magic attacks, Ranged attacks and Melee attacks)

At the moment its like this:

Attack versus armour:

           Unharmored       Light Armor     Medium Armor    Heavy Armor   Colossal Armor    Divine Armour
Magic       150%                100%              75%                125%              50%                 10%
Ranged     150%                125%              100%               75%               50%                 10%
Melee       150%                75%               125%               100%              50%                 10%

Game status:

-Save/load system  75% 80%
-Money/shop system 50% 100% reworking
-Level system 2% 10%
-Battle system 0% 40% 90%
-Character chosing system 100% reworking
-Game start system 80% 90% and reworked
-HPmax limit added 90%
-Potions 50%

I'm open to new ideas that might improve the game!

Wow this sounds like something great I hope you'll finish this so there will be another great RPG out there. And if you want to go further you really should check out ndless and C indeed.

No, you can lock a variable though to prevent editing. You'd do 'lock variable'. If you need to edit it you'd do 'unlock variable'

I think TI-BASIC should be fine for a text RPG, although the Input boxes can't be changed so that for example you can't have the user input commands like in command consoles.

Glad to see this is already progressing. I tend to prefer graphical games but a new RPG with quite a bit of features would definitively be nice for the Nspire.

Already got something, its very simple and as got only one monster but you can see how it will be like.

You're right about directions, its gamestart().
If you think that is big for a request then for the shop items you'll think the request is huge.
Yes its quite buggy, but thats something i'm fixing.

About the full line not appearing i use the trick you said, i'm using it to, but only implemented after making that part, i'll fix it in a sec.
And i played the game alot of times, and every time i play i find a new thing to repair so there is still a lot of work to do, but thanks

For some reason your game crashes a bit after a put my name in 

Anyway new update!

New implementation:
Potions
Potion using in combat 100%
Ability to buy potions in shop 0% but starting now
And hp no longer recovers after every fight hpmax limitation implemented

And main post updated