Hartacon is an online RPG game developed with XNA that allows players to challenge each other in online battles. Battles take place in 2D isometric maps with 4-angles view and zoom. A player can create one or more parties of characters of different classes, each with peculiar stats, skills and weapons. By winning battles, parties gain Upgrade Points (UPs), used to recruit new characters and buy equipments, while individual characters gain Growth Points (GPs), used to learn new skills and increase stats. The battle system is tactical, turn-based, and features traditional RPG elements such as elements and altered states. Players can play against each other or team up in alliances.