Monster Valle is a full-featured turn-based MMORPG with collectible monsters based in Pokémon.
The legacy and older game is available here with some minor and critical bugs: https://monstervalle.onrender.com/
The legacy code is open-source:
IMPORTANT: The game arts and musics are not free to use commercially, only the source code.
I’m working in a new one with Phaser3 + Nuxt + NestJS and TypeScript, but it’s closed-source as well.