Minetest mod for player experience management (xp) It adds an xp counter per player and ranks according to your xp level. The xp level, your rank and a progress bar to the next rank will show up in your hud. On every rank level up you get a award-like notification. There is also a xpgate block which, when placed under a wooden door will only allow players with a certain xp level to go through.
I don't intend to develop this mod any further, if you want to adopt/improve it, please let me know