I've tried to find another RPG games with turn-based combat submitted for LD38 besides mine, and here is a little list of what I've found:

• Petit Adventure - my entry, it is a JRPG with turn-based combat.
• A Growing Adventure - turn-based RPG with continuous world exploration(try it, it's really good).
• Sword of Xalavus - a take on the old-school(like really old) RPG.
• Tiny Hero - fun and interesting concept, how to put it, "RPG Defence"?
• Rogue Basement - classical ascii roguelite.
• It Isn't Easy Being Elite - not a RPG but a fun parody on classic turn-based combat.