Each mission is a sequence of from 6 to 90 puzzles. New puzzles are only opened if all the previous ones are solved.
For solving each puzzle the player is assigned a bronze (1 point), silver (2 points), or a gold (3 points) medal. Bronze medal – regardless of the solve time, silver and gold one – for the solving with a speed no less specified in the task.
To achieve the best results, each puzzle can be solved an unlimited number of times. Please note that missions use puzzles that already exist on the site, and there may be a situation where you have solved some of them before. For this reason, when you start solving another puzzle within the mission, if the site database already has this result saved, or a note about the solution, it will be deleted. Mission solve time is taken into account separately, so if you can't improve your results, the previous solve speed will remain.
After solving the last task, one of the medals will appear on your personal page. Gold medal – if you got gold star for all the puzzles, silver medal – if you scored at least 2*N points (N is the number of tasks) and bronze medal – in all other cases.
Missions have their entry price in game coins. For solving the mission with a bronze medal 20% of the coins are returned, with a silver one – 50%, with a gold one – 100%. Anyone can create the mission.
Missions under moderation can be solved for free, game coins will not be debited. Once someone has fully solved the mission, it will automatically be added to the catalog.