Masamune by Quillraven is a retro style RPG with round based combat. You play Alexxius, the hero of the story and have to protect the sacred Masamune sword against evil forces.
In Dinoleon by Quillraven you play a dinosaur chamaeleon creature that needs to avoid moving scanning areas by adjusting its color to the scan area's color.
In Mystic Woods by Quillraven you control a player in a top down adventure RPG example game. There is also a YoutTube video tutorial series linked on that repository site to go through the code step by step. Note that this game is an example for 1.6-JVM (=tutorial video series) and 2.0. There are two branches for this game. The fleks2 branch is the one for 2.0 API.
In Treasure Quest by mariorez you play a hero that helps to rid the land of flying bat-like creatures to get the promised treasure chest.
In Mystic Garden by Quillraven you control a hero who is searching for his girl! He woke up in a dark mystical garden and needs to collect all crystals to activate a portal that might bring him back to her.
This game also runs in the browser using TeaVM: Link to play
In Mystic Woods by Quillraven you control a player in a top down adventure RPG example game. There is also a YoutTube video tutorial series linked on that repository site to go through the code step by step.