ZXodus][Engine

[LCD]

16 NPCs per town - each town has a table of NPC start positions. Each NPC has a dialog tree. You can script other behaviour such as giving and taking objects. Shops are handled separately.

11 character classes - mage, fighter, thief, cleric and all possible multi-class combos

two spell systems - magic and prayer. point based. points derived from skill stats.

melee and ranged combat - top down combat with ranged and magic attacks able to hit distant targets.

Sounds good. Can it be also used with disabled Multicolor? We are currently working here on Journey`s End II and the biggest problem is the available memory, even after replacing PRINT with my custom printing routine. We only have 10 kb left... But if 128K is supported, our next RPG will use ZXodus Engine.
@boriel: Really you are into RPG games too? I hope, you can finish your game.